20642976

素因数分解:

$2^5\times 3^2\times {\mathrm{229}}^1\times {\mathrm{313}}^1$

素因数の和:558

約数の個数: 72

約数和(自身を含む): 59148180

約数和(自身を除く): 38505204

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 229, 288, 313, 458, 626, 687, 916, 939, 1252, 1374, 1832, 1878, 2061, 2504, 2748, 2817, 3664, 3756, 4122, 5008, 5496, 5634, 7328, 7512, 8244, 10016, 10992, 11268, 15024, 16488, 21984, 22536, 30048, 32976, 45072, 65952, 71677, 90144, 143354, 215031, 286708, 430062, 573416, 645093, 860124, 1146832, 1290186, 1720248, 2293664, 2580372, 3440496, 5160744, 6880992, 10321488, 20642976]

約数ペア:

[(1, 20642976), (2, 10321488), (3, 6880992), (4, 5160744), (6, 3440496), (8, 2580372), (9, 2293664), (12, 1720248), (16, 1290186), (18, 1146832), (24, 860124), (32, 645093), (36, 573416), (48, 430062), (72, 286708), (96, 215031), (144, 143354), (229, 90144), (288, 71677), (313, 65952), (458, 45072), (626, 32976), (687, 30048), (916, 22536), (939, 21984), (1252, 16488), (1374, 15024), (1832, 11268), (1878, 10992), (2061, 10016), (2504, 8244), (2748, 7512), (2817, 7328), (3664, 5634), (3756, 5496), (4122, 5008)]