64895792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16421}}^1$

素因数の和:16461

約数の個数: 40

約数和(自身を含む): 142542960

約数和(自身を除く): 77647168

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 16421, 32842, 65684, 131368, 213473, 262736, 311999, 426946, 623998, 853892, 1247996, 1707784, 2495992, 3415568, 4055987, 4991984, 8111974, 16223948, 32447896, 64895792]

約数ペア:

[(1, 64895792), (2, 32447896), (4, 16223948), (8, 8111974), (13, 4991984), (16, 4055987), (19, 3415568), (26, 2495992), (38, 1707784), (52, 1247996), (76, 853892), (104, 623998), (152, 426946), (208, 311999), (247, 262736), (304, 213473), (494, 131368), (988, 65684), (1976, 32842), (3952, 16421)]