51213520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37657}}^1$

素因数の和:37687

約数の個数: 40

約数和(自身を含む): 126078984

約数和(自身を除く): 74865464

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 37657, 75314, 150628, 188285, 301256, 376570, 602512, 640169, 753140, 1280338, 1506280, 2560676, 3012560, 3200845, 5121352, 6401690, 10242704, 12803380, 25606760, 51213520]

約数ペア:

[(1, 51213520), (2, 25606760), (4, 12803380), (5, 10242704), (8, 6401690), (10, 5121352), (16, 3200845), (17, 3012560), (20, 2560676), (34, 1506280), (40, 1280338), (68, 753140), (80, 640169), (85, 602512), (136, 376570), (170, 301256), (272, 188285), (340, 150628), (680, 75314), (1360, 37657)]