78490672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{19861}}^1$

素因数の和:19901

約数の個数: 40

約数和(自身を含む): 172402160

約数和(自身を除く): 93911488

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 19861, 39722, 79444, 158888, 258193, 317776, 377359, 516386, 754718, 1032772, 1509436, 2065544, 3018872, 4131088, 4905667, 6037744, 9811334, 19622668, 39245336, 78490672]

約数ペア:

[(1, 78490672), (2, 39245336), (4, 19622668), (8, 9811334), (13, 6037744), (16, 4905667), (19, 4131088), (26, 3018872), (38, 2065544), (52, 1509436), (76, 1032772), (104, 754718), (152, 516386), (208, 377359), (247, 317776), (304, 258193), (494, 158888), (988, 79444), (1976, 39722), (3952, 19861)]