2045734420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{709}}^1\times {\mathrm{1621}}^1$

素因数の和:2428

約数の個数: 48

約数和(自身を含む): 4353123600

約数和(自身を除く): 2307389180

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 709, 890, 1418, 1621, 1780, 2836, 3242, 3545, 6484, 7090, 8105, 14180, 16210, 32420, 63101, 126202, 144269, 252404, 288538, 315505, 577076, 631010, 721345, 1149289, 1262020, 1442690, 2298578, 2885380, 4597156, 5746445, 11492890, 22985780, 102286721, 204573442, 409146884, 511433605, 1022867210, 2045734420]

約数ペア:

[(1, 2045734420), (2, 1022867210), (4, 511433605), (5, 409146884), (10, 204573442), (20, 102286721), (89, 22985780), (178, 11492890), (356, 5746445), (445, 4597156), (709, 2885380), (890, 2298578), (1418, 1442690), (1621, 1262020), (1780, 1149289), (2836, 721345), (3242, 631010), (3545, 577076), (6484, 315505), (7090, 288538), (8105, 252404), (14180, 144269), (16210, 126202), (32420, 63101)]