221401310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{3413}}^1$

素因数の和:3932

約数の個数: 32

約数和(自身を含む): 430164000

約数和(自身を除く): 208762690

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 499, 998, 2495, 3413, 4990, 6487, 6826, 12974, 17065, 32435, 34130, 44369, 64870, 88738, 221845, 443690, 1703087, 3406174, 8515435, 17030870, 22140131, 44280262, 110700655, 221401310]

約数ペア:

[(1, 221401310), (2, 110700655), (5, 44280262), (10, 22140131), (13, 17030870), (26, 8515435), (65, 3406174), (130, 1703087), (499, 443690), (998, 221845), (2495, 88738), (3413, 64870), (4990, 44369), (6487, 34130), (6826, 32435), (12974, 17065)]