7834420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 18144000

約数和(自身を除く): 10309580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 239, 298, 478, 596, 745, 956, 1195, 1490, 1639, 2390, 2629, 2980, 3278, 4780, 5258, 6556, 8195, 10516, 13145, 16390, 26290, 32780, 35611, 52580, 71222, 142444, 178055, 356110, 391721, 712220, 783442, 1566884, 1958605, 3917210, 7834420]

約数ペア:

[(1, 7834420), (2, 3917210), (4, 1958605), (5, 1566884), (10, 783442), (11, 712220), (20, 391721), (22, 356110), (44, 178055), (55, 142444), (110, 71222), (149, 52580), (220, 35611), (239, 32780), (298, 26290), (478, 16390), (596, 13145), (745, 10516), (956, 8195), (1195, 6556), (1490, 5258), (1639, 4780), (2390, 3278), (2629, 2980)]