20451844

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 42940800

約数和(自身を除く): 22488956

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 89, 116, 178, 203, 283, 356, 406, 566, 623, 812, 1132, 1246, 1981, 2492, 2581, 3962, 5162, 7924, 8207, 10324, 16414, 18067, 25187, 32828, 36134, 50374, 57449, 72268, 100748, 114898, 176309, 229796, 352618, 705236, 730423, 1460846, 2921692, 5112961, 10225922, 20451844]

約数ペア:

[(1, 20451844), (2, 10225922), (4, 5112961), (7, 2921692), (14, 1460846), (28, 730423), (29, 705236), (58, 352618), (89, 229796), (116, 176309), (178, 114898), (203, 100748), (283, 72268), (356, 57449), (406, 50374), (566, 36134), (623, 32828), (812, 25187), (1132, 18067), (1246, 16414), (1981, 10324), (2492, 8207), (2581, 7924), (3962, 5162)]