28879620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:103

約数の個数: 288

約数和(自身を含む): 110315520

約数和(自身を除く): 81435900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 19, 20, 21, 22, 28, 30, 33, 35, 38, 42, 44, 47, 49, 55, 57, 60, 66, 70, 76, 77, 84, 94, 95, 98, 105, 110, 114, 132, 133, 140, 141, 147, 154, 165, 188, 190, 196, 209, 210, 220, 228, 231, 235, 245, 266, 282, 285, 294, 308, 329, 330, 380, 385, 399, 418, 420, 462, 470, 490, 517, 532, 539, 564, 570, 588, 627, 658, 660, 665, 705, 735, 770, 798, 836, 893, 924, 931, 940, 980, 987, 1034, 1045, 1078, 1140, 1155, 1254, 1316, 1330, 1410, 1463, 1470, 1540, 1551, 1596, 1617, 1645, 1786, 1862, 1974, 1995, 2068, 2090, 2156, 2303, 2310, 2508, 2585, 2660, 2679, 2695, 2793, 2820, 2926, 2940, 3102, 3135, 3234, 3290, 3572, 3619, 3724, 3948, 3990, 4180, 4389, 4465, 4606, 4620, 4655, 4935, 5170, 5358, 5390, 5586, 5852, 6204, 6251, 6270, 6468, 6580, 6909, 7238, 7315, 7755, 7980, 8085, 8778, 8930, 9212, 9310, 9823, 9870, 10241, 10340, 10716, 10780, 10857, 11172, 11515, 12502, 12540, 13395, 13818, 13965, 14476, 14630, 15510, 16170, 17556, 17860, 18095, 18620, 18753, 19646, 19740, 20482, 21714, 21945, 23030, 25004, 25333, 26790, 27636, 27930, 29260, 29469, 30723, 31020, 31255, 32340, 34545, 36190, 37506, 39292, 40964, 43428, 43757, 43890, 46060, 49115, 50666, 51205, 53580, 54285, 55860, 58938, 61446, 62510, 68761, 69090, 72380, 75012, 75999, 87514, 87780, 93765, 98230, 101332, 102410, 108570, 117876, 122892, 125020, 126665, 131271, 137522, 138180, 147345, 151998, 153615, 175028, 187530, 196460, 204820, 206283, 217140, 218785, 253330, 262542, 275044, 294690, 303996, 307230, 343805, 375060, 379995, 412566, 437570, 481327, 506660, 525084, 589380, 614460, 656355, 687610, 759990, 825132, 875140, 962654, 1031415, 1312710, 1375220, 1443981, 1519980, 1925308, 2062830, 2406635, 2625420, 2887962, 4125660, 4813270, 5775924, 7219905, 9626540, 14439810, 28879620]

約数ペア:

[(1, 28879620), (2, 14439810), (3, 9626540), (4, 7219905), (5, 5775924), (6, 4813270), (7, 4125660), (10, 2887962), (11, 2625420), (12, 2406635), (14, 2062830), (15, 1925308), (19, 1519980), (20, 1443981), (21, 1375220), (22, 1312710), (28, 1031415), (30, 962654), (33, 875140), (35, 825132), (38, 759990), (42, 687610), (44, 656355), (47, 614460), (49, 589380), (55, 525084), (57, 506660), (60, 481327), (66, 437570), (70, 412566), (76, 379995), (77, 375060), (84, 343805), (94, 307230), (95, 303996), (98, 294690), (105, 275044), (110, 262542), (114, 253330), (132, 218785), (133, 217140), (140, 206283), (141, 204820), (147, 196460), (154, 187530), (165, 175028), (188, 153615), (190, 151998), (196, 147345), (209, 138180), (210, 137522), (220, 131271), (228, 126665), (231, 125020), (235, 122892), (245, 117876), (266, 108570), (282, 102410), (285, 101332), (294, 98230), (308, 93765), (329, 87780), (330, 87514), (380, 75999), (385, 75012), (399, 72380), (418, 69090), (420, 68761), (462, 62510), (470, 61446), (490, 58938), (517, 55860), (532, 54285), (539, 53580), (564, 51205), (570, 50666), (588, 49115), (627, 46060), (658, 43890), (660, 43757), (665, 43428), (705, 40964), (735, 39292), (770, 37506), (798, 36190), (836, 34545), (893, 32340), (924, 31255), (931, 31020), (940, 30723), (980, 29469), (987, 29260), (1034, 27930), (1045, 27636), (1078, 26790), (1140, 25333), (1155, 25004), (1254, 23030), (1316, 21945), (1330, 21714), (1410, 20482), (1463, 19740), (1470, 19646), (1540, 18753), (1551, 18620), (1596, 18095), (1617, 17860), (1645, 17556), (1786, 16170), (1862, 15510), (1974, 14630), (1995, 14476), (2068, 13965), (2090, 13818), (2156, 13395), (2303, 12540), (2310, 12502), (2508, 11515), (2585, 11172), (2660, 10857), (2679, 10780), (2695, 10716), (2793, 10340), (2820, 10241), (2926, 9870), (2940, 9823), (3102, 9310), (3135, 9212), (3234, 8930), (3290, 8778), (3572, 8085), (3619, 7980), (3724, 7755), (3948, 7315), (3990, 7238), (4180, 6909), (4389, 6580), (4465, 6468), (4606, 6270), (4620, 6251), (4655, 6204), (4935, 5852), (5170, 5586), (5358, 5390)]