15668840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 38880000

約数和(自身を除く): 23211160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 149, 220, 239, 298, 440, 478, 596, 745, 956, 1192, 1195, 1490, 1639, 1912, 2390, 2629, 2980, 3278, 4780, 5258, 5960, 6556, 8195, 9560, 10516, 13112, 13145, 16390, 21032, 26290, 32780, 35611, 52580, 65560, 71222, 105160, 142444, 178055, 284888, 356110, 391721, 712220, 783442, 1424440, 1566884, 1958605, 3133768, 3917210, 7834420, 15668840]

約数ペア:

[(1, 15668840), (2, 7834420), (4, 3917210), (5, 3133768), (8, 1958605), (10, 1566884), (11, 1424440), (20, 783442), (22, 712220), (40, 391721), (44, 356110), (55, 284888), (88, 178055), (110, 142444), (149, 105160), (220, 71222), (239, 65560), (298, 52580), (440, 35611), (478, 32780), (596, 26290), (745, 21032), (956, 16390), (1192, 13145), (1195, 13112), (1490, 10516), (1639, 9560), (1912, 8195), (2390, 6556), (2629, 5960), (2980, 5258), (3278, 4780)]