51357320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1231}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 133056000

約数和(自身を除く): 81698680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 745, 1043, 1192, 1231, 1490, 2086, 2462, 2980, 4172, 4924, 5215, 5960, 6155, 8344, 8617, 9848, 10430, 12310, 17234, 20860, 24620, 34468, 41720, 43085, 49240, 68936, 86170, 172340, 183419, 344680, 366838, 733676, 917095, 1283933, 1467352, 1834190, 2567866, 3668380, 5135732, 6419665, 7336760, 10271464, 12839330, 25678660, 51357320]

約数ペア:

[(1, 51357320), (2, 25678660), (4, 12839330), (5, 10271464), (7, 7336760), (8, 6419665), (10, 5135732), (14, 3668380), (20, 2567866), (28, 1834190), (35, 1467352), (40, 1283933), (56, 917095), (70, 733676), (140, 366838), (149, 344680), (280, 183419), (298, 172340), (596, 86170), (745, 68936), (1043, 49240), (1192, 43085), (1231, 41720), (1490, 34468), (2086, 24620), (2462, 20860), (2980, 17234), (4172, 12310), (4924, 10430), (5215, 9848), (5960, 8617), (6155, 8344)]