245865980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{1499}}^1$

素因数の和:1706

約数の個数: 48

約数和(自身を含む): 529200000

約数和(自身を除く): 283334020

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 139, 236, 278, 295, 556, 590, 695, 1180, 1390, 1499, 2780, 2998, 5996, 7495, 8201, 14990, 16402, 29980, 32804, 41005, 82010, 88441, 164020, 176882, 208361, 353764, 416722, 442205, 833444, 884410, 1041805, 1768820, 2083610, 4167220, 12293299, 24586598, 49173196, 61466495, 122932990, 245865980]

約数ペア:

[(1, 245865980), (2, 122932990), (4, 61466495), (5, 49173196), (10, 24586598), (20, 12293299), (59, 4167220), (118, 2083610), (139, 1768820), (236, 1041805), (278, 884410), (295, 833444), (556, 442205), (590, 416722), (695, 353764), (1180, 208361), (1390, 176882), (1499, 164020), (2780, 88441), (2998, 82010), (5996, 41005), (7495, 32804), (8201, 29980), (14990, 16402)]