31289120

素因数分解:

$2^5\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1171}}^1$

素因数の和:1353

約数の個数: 48

約数和(自身を含む): 74426688

約数和(自身を除く): 43137568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 167, 334, 668, 835, 1171, 1336, 1670, 2342, 2672, 3340, 4684, 5344, 5855, 6680, 9368, 11710, 13360, 18736, 23420, 26720, 37472, 46840, 93680, 187360, 195557, 391114, 782228, 977785, 1564456, 1955570, 3128912, 3911140, 6257824, 7822280, 15644560, 31289120]

約数ペア:

[(1, 31289120), (2, 15644560), (4, 7822280), (5, 6257824), (8, 3911140), (10, 3128912), (16, 1955570), (20, 1564456), (32, 977785), (40, 782228), (80, 391114), (160, 195557), (167, 187360), (334, 93680), (668, 46840), (835, 37472), (1171, 26720), (1336, 23420), (1670, 18736), (2342, 13360), (2672, 11710), (3340, 9368), (4684, 6680), (5344, 5855)]