257821830

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:244

約数の個数: 288

約数和(自身を含む): 873905760

約数和(自身を除く): 616083930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 19, 21, 30, 34, 35, 38, 42, 45, 49, 51, 57, 63, 70, 85, 90, 95, 98, 102, 105, 114, 119, 126, 133, 147, 153, 170, 171, 181, 190, 210, 238, 245, 255, 266, 285, 294, 306, 315, 323, 342, 357, 362, 399, 441, 490, 510, 543, 570, 595, 630, 646, 665, 714, 735, 765, 798, 833, 855, 882, 905, 931, 969, 1071, 1086, 1190, 1197, 1267, 1330, 1470, 1530, 1615, 1629, 1666, 1710, 1785, 1810, 1862, 1938, 1995, 2142, 2205, 2261, 2394, 2499, 2534, 2715, 2793, 2907, 3077, 3230, 3258, 3439, 3570, 3801, 3990, 4165, 4410, 4522, 4655, 4845, 4998, 5355, 5430, 5586, 5814, 5985, 6154, 6335, 6783, 6878, 7497, 7602, 8145, 8330, 8379, 8869, 9231, 9310, 9690, 10317, 10710, 11305, 11403, 11970, 12495, 12670, 13566, 13965, 14535, 14994, 15385, 15827, 16290, 16758, 17195, 17738, 18462, 19005, 20349, 20634, 21539, 22610, 22806, 24073, 24990, 26607, 27693, 27930, 29070, 30770, 30951, 31654, 33915, 34390, 37485, 38010, 40698, 41895, 43078, 44345, 46155, 47481, 48146, 51585, 53214, 55386, 57015, 58463, 61902, 64617, 67830, 72219, 74970, 79135, 79821, 83790, 88690, 92310, 94962, 101745, 103170, 107695, 114030, 116926, 120365, 129234, 133035, 138465, 142443, 144438, 150773, 154755, 158270, 159642, 168511, 175389, 193851, 203490, 215390, 216657, 237405, 240730, 266070, 276930, 284886, 292315, 301546, 309510, 323085, 337022, 350778, 361095, 387702, 399105, 409241, 433314, 452319, 474810, 505533, 526167, 584630, 646170, 712215, 722190, 753865, 798210, 818482, 842555, 876945, 904638, 969255, 1011066, 1052334, 1083285, 1227723, 1356957, 1424430, 1507730, 1516599, 1685110, 1753890, 1938510, 2046205, 2166570, 2261595, 2455446, 2527665, 2630835, 2713914, 2864687, 3033198, 3683169, 4092410, 4523190, 5055330, 5261670, 5729374, 6138615, 6784785, 7366338, 7582995, 8594061, 12277230, 13569570, 14323435, 15165990, 17188122, 18415845, 25782183, 28646870, 36831690, 42970305, 51564366, 85940610, 128910915, 257821830]

約数ペア:

[(1, 257821830), (2, 128910915), (3, 85940610), (5, 51564366), (6, 42970305), (7, 36831690), (9, 28646870), (10, 25782183), (14, 18415845), (15, 17188122), (17, 15165990), (18, 14323435), (19, 13569570), (21, 12277230), (30, 8594061), (34, 7582995), (35, 7366338), (38, 6784785), (42, 6138615), (45, 5729374), (49, 5261670), (51, 5055330), (57, 4523190), (63, 4092410), (70, 3683169), (85, 3033198), (90, 2864687), (95, 2713914), (98, 2630835), (102, 2527665), (105, 2455446), (114, 2261595), (119, 2166570), (126, 2046205), (133, 1938510), (147, 1753890), (153, 1685110), (170, 1516599), (171, 1507730), (181, 1424430), (190, 1356957), (210, 1227723), (238, 1083285), (245, 1052334), (255, 1011066), (266, 969255), (285, 904638), (294, 876945), (306, 842555), (315, 818482), (323, 798210), (342, 753865), (357, 722190), (362, 712215), (399, 646170), (441, 584630), (490, 526167), (510, 505533), (543, 474810), (570, 452319), (595, 433314), (630, 409241), (646, 399105), (665, 387702), (714, 361095), (735, 350778), (765, 337022), (798, 323085), (833, 309510), (855, 301546), (882, 292315), (905, 284886), (931, 276930), (969, 266070), (1071, 240730), (1086, 237405), (1190, 216657), (1197, 215390), (1267, 203490), (1330, 193851), (1470, 175389), (1530, 168511), (1615, 159642), (1629, 158270), (1666, 154755), (1710, 150773), (1785, 144438), (1810, 142443), (1862, 138465), (1938, 133035), (1995, 129234), (2142, 120365), (2205, 116926), (2261, 114030), (2394, 107695), (2499, 103170), (2534, 101745), (2715, 94962), (2793, 92310), (2907, 88690), (3077, 83790), (3230, 79821), (3258, 79135), (3439, 74970), (3570, 72219), (3801, 67830), (3990, 64617), (4165, 61902), (4410, 58463), (4522, 57015), (4655, 55386), (4845, 53214), (4998, 51585), (5355, 48146), (5430, 47481), (5586, 46155), (5814, 44345), (5985, 43078), (6154, 41895), (6335, 40698), (6783, 38010), (6878, 37485), (7497, 34390), (7602, 33915), (8145, 31654), (8330, 30951), (8379, 30770), (8869, 29070), (9231, 27930), (9310, 27693), (9690, 26607), (10317, 24990), (10710, 24073), (11305, 22806), (11403, 22610), (11970, 21539), (12495, 20634), (12670, 20349), (13566, 19005), (13965, 18462), (14535, 17738), (14994, 17195), (15385, 16758), (15827, 16290)]