31337680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:412

約数の個数: 80

約数和(自身を含む): 80352000

約数和(自身を除く): 49014320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 149, 176, 220, 239, 298, 440, 478, 596, 745, 880, 956, 1192, 1195, 1490, 1639, 1912, 2384, 2390, 2629, 2980, 3278, 3824, 4780, 5258, 5960, 6556, 8195, 9560, 10516, 11920, 13112, 13145, 16390, 19120, 21032, 26224, 26290, 32780, 35611, 42064, 52580, 65560, 71222, 105160, 131120, 142444, 178055, 210320, 284888, 356110, 391721, 569776, 712220, 783442, 1424440, 1566884, 1958605, 2848880, 3133768, 3917210, 6267536, 7834420, 15668840, 31337680]

約数ペア:

[(1, 31337680), (2, 15668840), (4, 7834420), (5, 6267536), (8, 3917210), (10, 3133768), (11, 2848880), (16, 1958605), (20, 1566884), (22, 1424440), (40, 783442), (44, 712220), (55, 569776), (80, 391721), (88, 356110), (110, 284888), (149, 210320), (176, 178055), (220, 142444), (239, 131120), (298, 105160), (440, 71222), (478, 65560), (596, 52580), (745, 42064), (880, 35611), (956, 32780), (1192, 26290), (1195, 26224), (1490, 21032), (1639, 19120), (1912, 16390), (2384, 13145), (2390, 13112), (2629, 11920), (2980, 10516), (3278, 9560), (3824, 8195), (4780, 6556), (5258, 5960)]