64978660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{317}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 141092784

約数和(自身を除く): 76114124

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 277, 317, 370, 554, 634, 740, 1108, 1268, 1385, 1585, 2770, 3170, 5540, 6340, 10249, 11729, 20498, 23458, 40996, 46916, 51245, 58645, 87809, 102490, 117290, 175618, 204980, 234580, 351236, 439045, 878090, 1756180, 3248933, 6497866, 12995732, 16244665, 32489330, 64978660]

約数ペア:

[(1, 64978660), (2, 32489330), (4, 16244665), (5, 12995732), (10, 6497866), (20, 3248933), (37, 1756180), (74, 878090), (148, 439045), (185, 351236), (277, 234580), (317, 204980), (370, 175618), (554, 117290), (634, 102490), (740, 87809), (1108, 58645), (1268, 51245), (1385, 46916), (1585, 40996), (2770, 23458), (3170, 20498), (5540, 11729), (6340, 10249)]