20166760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 49144320

約数和(自身を除く): 28977560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 631, 680, 799, 940, 1262, 1598, 1880, 2524, 3155, 3196, 3995, 5048, 6310, 6392, 7990, 10727, 12620, 15980, 21454, 25240, 29657, 31960, 42908, 53635, 59314, 85816, 107270, 118628, 148285, 214540, 237256, 296570, 429080, 504169, 593140, 1008338, 1186280, 2016676, 2520845, 4033352, 5041690, 10083380, 20166760]

約数ペア:

[(1, 20166760), (2, 10083380), (4, 5041690), (5, 4033352), (8, 2520845), (10, 2016676), (17, 1186280), (20, 1008338), (34, 593140), (40, 504169), (47, 429080), (68, 296570), (85, 237256), (94, 214540), (136, 148285), (170, 118628), (188, 107270), (235, 85816), (340, 59314), (376, 53635), (470, 42908), (631, 31960), (680, 29657), (799, 25240), (940, 21454), (1262, 15980), (1598, 12620), (1880, 10727), (2524, 7990), (3155, 6392), (3196, 6310), (3995, 5048)]