81502128

素因数分解:

$2^4\times 3^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:307

約数の個数: 120

約数和(自身を含む): 237641040

約数和(自身を除く): 156138912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 53, 59, 72, 106, 118, 144, 159, 177, 181, 212, 236, 318, 354, 362, 424, 472, 477, 531, 543, 636, 708, 724, 848, 944, 954, 1062, 1086, 1272, 1416, 1448, 1629, 1908, 2124, 2172, 2544, 2832, 2896, 3127, 3258, 3816, 4248, 4344, 6254, 6516, 7632, 8496, 8688, 9381, 9593, 10679, 12508, 13032, 18762, 19186, 21358, 25016, 26064, 28143, 28779, 32037, 37524, 38372, 42716, 50032, 56286, 57558, 64074, 75048, 76744, 85432, 86337, 96111, 112572, 115116, 128148, 150096, 153488, 170864, 172674, 192222, 225144, 230232, 256296, 345348, 384444, 450288, 460464, 512592, 565987, 690696, 768888, 1131974, 1381392, 1537776, 1697961, 2263948, 3395922, 4527896, 5093883, 6791844, 9055792, 10187766, 13583688, 20375532, 27167376, 40751064, 81502128]

約数ペア:

[(1, 81502128), (2, 40751064), (3, 27167376), (4, 20375532), (6, 13583688), (8, 10187766), (9, 9055792), (12, 6791844), (16, 5093883), (18, 4527896), (24, 3395922), (36, 2263948), (48, 1697961), (53, 1537776), (59, 1381392), (72, 1131974), (106, 768888), (118, 690696), (144, 565987), (159, 512592), (177, 460464), (181, 450288), (212, 384444), (236, 345348), (318, 256296), (354, 230232), (362, 225144), (424, 192222), (472, 172674), (477, 170864), (531, 153488), (543, 150096), (636, 128148), (708, 115116), (724, 112572), (848, 96111), (944, 86337), (954, 85432), (1062, 76744), (1086, 75048), (1272, 64074), (1416, 57558), (1448, 56286), (1629, 50032), (1908, 42716), (2124, 38372), (2172, 37524), (2544, 32037), (2832, 28779), (2896, 28143), (3127, 26064), (3258, 25016), (3816, 21358), (4248, 19186), (4344, 18762), (6254, 13032), (6516, 12508), (7632, 10679), (8496, 9593), (8688, 9381)]