81931724

素因数分解:

$2^2\times 7^4\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:500

約数の個数: 60

約数和(自身を含む): 176463000

約数和(自身を除く): 94531276

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 343, 449, 532, 686, 898, 931, 1372, 1796, 1862, 2401, 3143, 3724, 4802, 6286, 6517, 8531, 9604, 12572, 13034, 17062, 22001, 26068, 34124, 44002, 45619, 59717, 88004, 91238, 119434, 154007, 182476, 238868, 308014, 418019, 616028, 836038, 1078049, 1672076, 2156098, 2926133, 4312196, 5852266, 11704532, 20482931, 40965862, 81931724]

約数ペア:

[(1, 81931724), (2, 40965862), (4, 20482931), (7, 11704532), (14, 5852266), (19, 4312196), (28, 2926133), (38, 2156098), (49, 1672076), (76, 1078049), (98, 836038), (133, 616028), (196, 418019), (266, 308014), (343, 238868), (449, 182476), (532, 154007), (686, 119434), (898, 91238), (931, 88004), (1372, 59717), (1796, 45619), (1862, 44002), (2401, 34124), (3143, 26068), (3724, 22001), (4802, 17062), (6286, 13034), (6517, 12572), (8531, 9604)]