65439990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 288

約数和(自身を含む): 230480640

約数和(自身を除く): 165040650

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 19, 21, 22, 30, 33, 35, 38, 42, 45, 49, 55, 57, 63, 66, 70, 71, 77, 90, 95, 98, 99, 105, 110, 114, 126, 133, 142, 147, 154, 165, 171, 190, 198, 209, 210, 213, 231, 245, 266, 285, 294, 315, 330, 342, 355, 385, 399, 418, 426, 441, 462, 490, 495, 497, 539, 570, 627, 630, 639, 665, 693, 710, 735, 770, 781, 798, 855, 882, 931, 990, 994, 1045, 1065, 1078, 1155, 1197, 1254, 1278, 1330, 1349, 1386, 1463, 1470, 1491, 1562, 1617, 1710, 1862, 1881, 1995, 2090, 2130, 2205, 2310, 2343, 2394, 2485, 2695, 2698, 2793, 2926, 2982, 3135, 3195, 3234, 3465, 3479, 3762, 3905, 3990, 4047, 4389, 4410, 4473, 4655, 4686, 4851, 4970, 5390, 5467, 5586, 5985, 6270, 6390, 6745, 6930, 6958, 7029, 7315, 7455, 7810, 8085, 8094, 8379, 8778, 8946, 9310, 9405, 9443, 9702, 10241, 10437, 10934, 11715, 11970, 12141, 13167, 13490, 13965, 14058, 14630, 14839, 14910, 16170, 16401, 16758, 17395, 18810, 18886, 20235, 20482, 20874, 21945, 22365, 23430, 24255, 24282, 26334, 27335, 27930, 28329, 29678, 30723, 31311, 32802, 34790, 35145, 38269, 40470, 41895, 43890, 44517, 44730, 47215, 48510, 49203, 51205, 52185, 54670, 56658, 60705, 61446, 62622, 65835, 66101, 70290, 74195, 76538, 82005, 83790, 84987, 89034, 92169, 94430, 98406, 102410, 103873, 104370, 114807, 121410, 131670, 132202, 133551, 141645, 148390, 153615, 156555, 164010, 169974, 184338, 191345, 198303, 207746, 222585, 229614, 246015, 267102, 283290, 307230, 311619, 313110, 330505, 344421, 382690, 396606, 424935, 445170, 460845, 492030, 519365, 574035, 594909, 623238, 661010, 667755, 688842, 727111, 849870, 921690, 934857, 991515, 1038730, 1148070, 1189818, 1335510, 1454222, 1558095, 1722105, 1869714, 1983030, 2181333, 2974545, 3116190, 3444210, 3635555, 4362666, 4674285, 5949090, 6543999, 7271110, 9348570, 10906665, 13087998, 21813330, 32719995, 65439990]

約数ペア:

[(1, 65439990), (2, 32719995), (3, 21813330), (5, 13087998), (6, 10906665), (7, 9348570), (9, 7271110), (10, 6543999), (11, 5949090), (14, 4674285), (15, 4362666), (18, 3635555), (19, 3444210), (21, 3116190), (22, 2974545), (30, 2181333), (33, 1983030), (35, 1869714), (38, 1722105), (42, 1558095), (45, 1454222), (49, 1335510), (55, 1189818), (57, 1148070), (63, 1038730), (66, 991515), (70, 934857), (71, 921690), (77, 849870), (90, 727111), (95, 688842), (98, 667755), (99, 661010), (105, 623238), (110, 594909), (114, 574035), (126, 519365), (133, 492030), (142, 460845), (147, 445170), (154, 424935), (165, 396606), (171, 382690), (190, 344421), (198, 330505), (209, 313110), (210, 311619), (213, 307230), (231, 283290), (245, 267102), (266, 246015), (285, 229614), (294, 222585), (315, 207746), (330, 198303), (342, 191345), (355, 184338), (385, 169974), (399, 164010), (418, 156555), (426, 153615), (441, 148390), (462, 141645), (490, 133551), (495, 132202), (497, 131670), (539, 121410), (570, 114807), (627, 104370), (630, 103873), (639, 102410), (665, 98406), (693, 94430), (710, 92169), (735, 89034), (770, 84987), (781, 83790), (798, 82005), (855, 76538), (882, 74195), (931, 70290), (990, 66101), (994, 65835), (1045, 62622), (1065, 61446), (1078, 60705), (1155, 56658), (1197, 54670), (1254, 52185), (1278, 51205), (1330, 49203), (1349, 48510), (1386, 47215), (1463, 44730), (1470, 44517), (1491, 43890), (1562, 41895), (1617, 40470), (1710, 38269), (1862, 35145), (1881, 34790), (1995, 32802), (2090, 31311), (2130, 30723), (2205, 29678), (2310, 28329), (2343, 27930), (2394, 27335), (2485, 26334), (2695, 24282), (2698, 24255), (2793, 23430), (2926, 22365), (2982, 21945), (3135, 20874), (3195, 20482), (3234, 20235), (3465, 18886), (3479, 18810), (3762, 17395), (3905, 16758), (3990, 16401), (4047, 16170), (4389, 14910), (4410, 14839), (4473, 14630), (4655, 14058), (4686, 13965), (4851, 13490), (4970, 13167), (5390, 12141), (5467, 11970), (5586, 11715), (5985, 10934), (6270, 10437), (6390, 10241), (6745, 9702), (6930, 9443), (6958, 9405), (7029, 9310), (7315, 8946), (7455, 8778), (7810, 8379), (8085, 8094)]