18128940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{467}}^1\times {\mathrm{647}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 50948352

約数和(自身を除く): 32819412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 467, 647, 934, 1294, 1401, 1868, 1941, 2335, 2588, 2802, 3235, 3882, 4670, 5604, 6470, 7005, 7764, 9340, 9705, 12940, 14010, 19410, 28020, 38820, 302149, 604298, 906447, 1208596, 1510745, 1812894, 3021490, 3625788, 4532235, 6042980, 9064470, 18128940]

約数ペア:

[(1, 18128940), (2, 9064470), (3, 6042980), (4, 4532235), (5, 3625788), (6, 3021490), (10, 1812894), (12, 1510745), (15, 1208596), (20, 906447), (30, 604298), (60, 302149), (467, 38820), (647, 28020), (934, 19410), (1294, 14010), (1401, 12940), (1868, 9705), (1941, 9340), (2335, 7764), (2588, 7005), (2802, 6470), (3235, 5604), (3882, 4670)]