641593970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2237}}^1$

素因数の和:2339

約数の個数: 64

約数和(自身を含む): 1276197120

約数和(自身を除く): 634603150

約数列:

[1, 2, 5, 10, 23, 29, 43, 46, 58, 86, 115, 145, 215, 230, 290, 430, 667, 989, 1247, 1334, 1978, 2237, 2494, 3335, 4474, 4945, 6235, 6670, 9890, 11185, 12470, 22370, 28681, 51451, 57362, 64873, 96191, 102902, 129746, 143405, 192382, 257255, 286810, 324365, 480955, 514510, 648730, 961910, 1492079, 2212393, 2789539, 2984158, 4424786, 5579078, 7460395, 11061965, 13947695, 14920790, 22123930, 27895390, 64159397, 128318794, 320796985, 641593970]

約数ペア:

[(1, 641593970), (2, 320796985), (5, 128318794), (10, 64159397), (23, 27895390), (29, 22123930), (43, 14920790), (46, 13947695), (58, 11061965), (86, 7460395), (115, 5579078), (145, 4424786), (215, 2984158), (230, 2789539), (290, 2212393), (430, 1492079), (667, 961910), (989, 648730), (1247, 514510), (1334, 480955), (1978, 324365), (2237, 286810), (2494, 257255), (3335, 192382), (4474, 143405), (4945, 129746), (6235, 102902), (6670, 96191), (9890, 64873), (11185, 57362), (12470, 51451), (22370, 28681)]