18574896020

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{823}}^1\times {\mathrm{4391}}^1$

素因数の和:5480

約数の個数: 48

約数和(自身を含む): 39215570688

約数和(自身を除く): 20640674668

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 823, 1028, 1285, 1646, 2570, 3292, 4115, 4391, 5140, 8230, 8782, 16460, 17564, 21955, 43910, 87820, 211511, 423022, 846044, 1057555, 1128487, 2115110, 2256974, 3613793, 4230220, 4513948, 5642435, 7227586, 11284870, 14455172, 18068965, 22569740, 36137930, 72275860, 928744801, 1857489602, 3714979204, 4643724005, 9287448010, 18574896020]

約数ペア:

[(1, 18574896020), (2, 9287448010), (4, 4643724005), (5, 3714979204), (10, 1857489602), (20, 928744801), (257, 72275860), (514, 36137930), (823, 22569740), (1028, 18068965), (1285, 14455172), (1646, 11284870), (2570, 7227586), (3292, 5642435), (4115, 4513948), (4391, 4230220), (5140, 3613793), (8230, 2256974), (8782, 2115110), (16460, 1128487), (17564, 1057555), (21955, 846044), (43910, 423022), (87820, 211511)]