77690680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2657}}^1$

素因数の和:2728

約数の個数: 64

約数和(自身を含む): 189462240

約数和(自身を除く): 111771560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1462, 1720, 2657, 2924, 3655, 5314, 5848, 7310, 10628, 13285, 14620, 21256, 26570, 29240, 45169, 53140, 90338, 106280, 114251, 180676, 225845, 228502, 361352, 451690, 457004, 571255, 903380, 914008, 1142510, 1806760, 1942267, 2285020, 3884534, 4570040, 7769068, 9711335, 15538136, 19422670, 38845340, 77690680]

約数ペア:

[(1, 77690680), (2, 38845340), (4, 19422670), (5, 15538136), (8, 9711335), (10, 7769068), (17, 4570040), (20, 3884534), (34, 2285020), (40, 1942267), (43, 1806760), (68, 1142510), (85, 914008), (86, 903380), (136, 571255), (170, 457004), (172, 451690), (215, 361352), (340, 228502), (344, 225845), (430, 180676), (680, 114251), (731, 106280), (860, 90338), (1462, 53140), (1720, 45169), (2657, 29240), (2924, 26570), (3655, 21256), (5314, 14620), (5848, 13285), (7310, 10628)]