74991980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{1193}}^1$

素因数の和:1658

約数の個数: 48

約数和(自身を含む): 180532800

約数和(自身を除く): 105540820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 449, 898, 1193, 1796, 2245, 2386, 3143, 4490, 4772, 5965, 6286, 8351, 8980, 11930, 12572, 15715, 16702, 23860, 31430, 33404, 41755, 62860, 83510, 167020, 535657, 1071314, 2142628, 2678285, 3749599, 5356570, 7499198, 10713140, 14998396, 18747995, 37495990, 74991980]

約数ペア:

[(1, 74991980), (2, 37495990), (4, 18747995), (5, 14998396), (7, 10713140), (10, 7499198), (14, 5356570), (20, 3749599), (28, 2678285), (35, 2142628), (70, 1071314), (140, 535657), (449, 167020), (898, 83510), (1193, 62860), (1796, 41755), (2245, 33404), (2386, 31430), (3143, 23860), (4490, 16702), (4772, 15715), (5965, 12572), (6286, 11930), (8351, 8980)]