20668700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1223}}^1$

素因数の和:1263

約数の個数: 54

約数和(自身を含む): 48606264

約数和(自身を除く): 27937564

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 845, 1223, 1300, 1690, 2446, 3380, 4225, 4892, 6115, 8450, 12230, 15899, 16900, 24460, 30575, 31798, 61150, 63596, 79495, 122300, 158990, 206687, 317980, 397475, 413374, 794950, 826748, 1033435, 1589900, 2066870, 4133740, 5167175, 10334350, 20668700]

約数ペア:

[(1, 20668700), (2, 10334350), (4, 5167175), (5, 4133740), (10, 2066870), (13, 1589900), (20, 1033435), (25, 826748), (26, 794950), (50, 413374), (52, 397475), (65, 317980), (100, 206687), (130, 158990), (169, 122300), (260, 79495), (325, 63596), (338, 61150), (650, 31798), (676, 30575), (845, 24460), (1223, 16900), (1300, 15899), (1690, 12230), (2446, 8450), (3380, 6115), (4225, 4892)]