20291100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{239}}^1\times {\mathrm{283}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 59162880

約数和(自身を除く): 38871780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 239, 283, 300, 478, 566, 717, 849, 956, 1132, 1195, 1415, 1434, 1698, 2390, 2830, 2868, 3396, 3585, 4245, 4780, 5660, 5975, 7075, 7170, 8490, 11950, 14150, 14340, 16980, 17925, 21225, 23900, 28300, 35850, 42450, 67637, 71700, 84900, 135274, 202911, 270548, 338185, 405822, 676370, 811644, 1014555, 1352740, 1690925, 2029110, 3381850, 4058220, 5072775, 6763700, 10145550, 20291100]

約数ペア:

[(1, 20291100), (2, 10145550), (3, 6763700), (4, 5072775), (5, 4058220), (6, 3381850), (10, 2029110), (12, 1690925), (15, 1352740), (20, 1014555), (25, 811644), (30, 676370), (50, 405822), (60, 338185), (75, 270548), (100, 202911), (150, 135274), (239, 84900), (283, 71700), (300, 67637), (478, 42450), (566, 35850), (717, 28300), (849, 23900), (956, 21225), (1132, 17925), (1195, 16980), (1415, 14340), (1434, 14150), (1698, 11950), (2390, 8490), (2830, 7170), (2868, 7075), (3396, 5975), (3585, 5660), (4245, 4780)]