388687640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{1933}}^1$

素因数の和:2412

約数の個数: 64

約数和(自身を含む): 956633760

約数和(自身を除く): 567946120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 457, 914, 1828, 1933, 2285, 3656, 3866, 4570, 5027, 7732, 9140, 9665, 10054, 15464, 18280, 19330, 20108, 21263, 25135, 38660, 40216, 42526, 50270, 77320, 85052, 100540, 106315, 170104, 201080, 212630, 425260, 850520, 883381, 1766762, 3533524, 4416905, 7067048, 8833810, 9717191, 17667620, 19434382, 35335240, 38868764, 48585955, 77737528, 97171910, 194343820, 388687640]

約数ペア:

[(1, 388687640), (2, 194343820), (4, 97171910), (5, 77737528), (8, 48585955), (10, 38868764), (11, 35335240), (20, 19434382), (22, 17667620), (40, 9717191), (44, 8833810), (55, 7067048), (88, 4416905), (110, 3533524), (220, 1766762), (440, 883381), (457, 850520), (914, 425260), (1828, 212630), (1933, 201080), (2285, 170104), (3656, 106315), (3866, 100540), (4570, 85052), (5027, 77320), (7732, 50270), (9140, 42526), (9665, 40216), (10054, 38660), (15464, 25135), (18280, 21263), (19330, 20108)]