20307720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{739}}^1$

素因数の和:982

約数の個数: 64

約数和(自身を含む): 61272000

約数和(自身を除く): 40964280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 229, 458, 687, 739, 916, 1145, 1374, 1478, 1832, 2217, 2290, 2748, 2956, 3435, 3695, 4434, 4580, 5496, 5912, 6870, 7390, 8868, 9160, 11085, 13740, 14780, 17736, 22170, 27480, 29560, 44340, 88680, 169231, 338462, 507693, 676924, 846155, 1015386, 1353848, 1692310, 2030772, 2538465, 3384620, 4061544, 5076930, 6769240, 10153860, 20307720]

約数ペア:

[(1, 20307720), (2, 10153860), (3, 6769240), (4, 5076930), (5, 4061544), (6, 3384620), (8, 2538465), (10, 2030772), (12, 1692310), (15, 1353848), (20, 1015386), (24, 846155), (30, 676924), (40, 507693), (60, 338462), (120, 169231), (229, 88680), (458, 44340), (687, 29560), (739, 27480), (916, 22170), (1145, 17736), (1374, 14780), (1478, 13740), (1832, 11085), (2217, 9160), (2290, 8868), (2748, 7390), (2956, 6870), (3435, 5912), (3695, 5496), (4434, 4580)]