20953650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{857}}^1$

素因数の和:1035

約数の個数: 48

約数和(自身を含む): 52344864

約数和(自身を除く): 31391214

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 163, 326, 489, 815, 857, 978, 1630, 1714, 2445, 2571, 4075, 4285, 4890, 5142, 8150, 8570, 12225, 12855, 21425, 24450, 25710, 42850, 64275, 128550, 139691, 279382, 419073, 698455, 838146, 1396910, 2095365, 3492275, 4190730, 6984550, 10476825, 20953650]

約数ペア:

[(1, 20953650), (2, 10476825), (3, 6984550), (5, 4190730), (6, 3492275), (10, 2095365), (15, 1396910), (25, 838146), (30, 698455), (50, 419073), (75, 279382), (150, 139691), (163, 128550), (326, 64275), (489, 42850), (815, 25710), (857, 24450), (978, 21425), (1630, 12855), (1714, 12225), (2445, 8570), (2571, 8150), (4075, 5142), (4285, 4890)]