217468810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{3407}}^1$

素因数の和:3918

約数の個数: 32

約数和(自身を含む): 422537472

約数和(自身を除く): 205068662

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 491, 982, 2455, 3407, 4910, 6383, 6814, 12766, 17035, 31915, 34070, 44291, 63830, 88582, 221455, 442910, 1672837, 3345674, 8364185, 16728370, 21746881, 43493762, 108734405, 217468810]

約数ペア:

[(1, 217468810), (2, 108734405), (5, 43493762), (10, 21746881), (13, 16728370), (26, 8364185), (65, 3345674), (130, 1672837), (491, 442910), (982, 221455), (2455, 88582), (3407, 63830), (4910, 44291), (6383, 34070), (6814, 31915), (12766, 17035)]