81435672

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{19843}}^1$

素因数の和:19877

約数の個数: 64

約数和(自身を含む): 238128000

約数和(自身を除く): 156692328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 108, 114, 152, 171, 216, 228, 342, 456, 513, 684, 1026, 1368, 2052, 4104, 19843, 39686, 59529, 79372, 119058, 158744, 178587, 238116, 357174, 377017, 476232, 535761, 714348, 754034, 1071522, 1131051, 1428696, 1508068, 2143044, 2262102, 3016136, 3393153, 4286088, 4524204, 6786306, 9048408, 10179459, 13572612, 20358918, 27145224, 40717836, 81435672]

約数ペア:

[(1, 81435672), (2, 40717836), (3, 27145224), (4, 20358918), (6, 13572612), (8, 10179459), (9, 9048408), (12, 6786306), (18, 4524204), (19, 4286088), (24, 3393153), (27, 3016136), (36, 2262102), (38, 2143044), (54, 1508068), (57, 1428696), (72, 1131051), (76, 1071522), (108, 754034), (114, 714348), (152, 535761), (171, 476232), (216, 377017), (228, 357174), (342, 238116), (456, 178587), (513, 158744), (684, 119058), (1026, 79372), (1368, 59529), (2052, 39686), (4104, 19843)]