1780196540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{13291}}^1$

素因数の和:13518

約数の個数: 48

約数和(自身を含む): 3860953824

約数和(自身を除く): 2080757284

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 181, 185, 362, 370, 724, 740, 905, 1810, 3620, 6697, 13291, 13394, 26582, 26788, 33485, 53164, 66455, 66970, 132910, 133940, 265820, 491767, 983534, 1967068, 2405671, 2458835, 4811342, 4917670, 9622684, 9835340, 12028355, 24056710, 48113420, 89009827, 178019654, 356039308, 445049135, 890098270, 1780196540]

約数ペア:

[(1, 1780196540), (2, 890098270), (4, 445049135), (5, 356039308), (10, 178019654), (20, 89009827), (37, 48113420), (74, 24056710), (148, 12028355), (181, 9835340), (185, 9622684), (362, 4917670), (370, 4811342), (724, 2458835), (740, 2405671), (905, 1967068), (1810, 983534), (3620, 491767), (6697, 265820), (13291, 133940), (13394, 132910), (26582, 66970), (26788, 66455), (33485, 53164)]