71818640

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{13399}}^1$

素因数の和:13479

約数の個数: 40

約数和(自身を含む): 169483200

約数和(自身を除く): 97664560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 13399, 26798, 53596, 66995, 107192, 133990, 214384, 267980, 535960, 897733, 1071920, 1795466, 3590932, 4488665, 7181864, 8977330, 14363728, 17954660, 35909320, 71818640]

約数ペア:

[(1, 71818640), (2, 35909320), (4, 17954660), (5, 14363728), (8, 8977330), (10, 7181864), (16, 4488665), (20, 3590932), (40, 1795466), (67, 1071920), (80, 897733), (134, 535960), (268, 267980), (335, 214384), (536, 133990), (670, 107192), (1072, 66995), (1340, 53596), (2680, 26798), (5360, 13399)]