408966896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{23689}}^1$

素因数の和:23793

約数の個数: 40

約数和(自身を含む): 863642640

約数和(自身を除く): 454675744

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 83, 104, 166, 208, 332, 664, 1079, 1328, 2158, 4316, 8632, 17264, 23689, 47378, 94756, 189512, 307957, 379024, 615914, 1231828, 1966187, 2463656, 3932374, 4927312, 7864748, 15729496, 25560431, 31458992, 51120862, 102241724, 204483448, 408966896]

約数ペア:

[(1, 408966896), (2, 204483448), (4, 102241724), (8, 51120862), (13, 31458992), (16, 25560431), (26, 15729496), (52, 7864748), (83, 4927312), (104, 3932374), (166, 2463656), (208, 1966187), (332, 1231828), (664, 615914), (1079, 379024), (1328, 307957), (2158, 189512), (4316, 94756), (8632, 47378), (17264, 23689)]