20458890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2207}}^1$

素因数の和:2323

約数の個数: 48

約数和(自身を含む): 53733888

約数和(自身を除く): 33274998

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 103, 206, 309, 515, 618, 927, 1030, 1545, 1854, 2207, 3090, 4414, 4635, 6621, 9270, 11035, 13242, 19863, 22070, 33105, 39726, 66210, 99315, 198630, 227321, 454642, 681963, 1136605, 1363926, 2045889, 2273210, 3409815, 4091778, 6819630, 10229445, 20458890]

約数ペア:

[(1, 20458890), (2, 10229445), (3, 6819630), (5, 4091778), (6, 3409815), (9, 2273210), (10, 2045889), (15, 1363926), (18, 1136605), (30, 681963), (45, 454642), (90, 227321), (103, 198630), (206, 99315), (309, 66210), (515, 39726), (618, 33105), (927, 22070), (1030, 19863), (1545, 13242), (1854, 11035), (2207, 9270), (3090, 6621), (4414, 4635)]