28451180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 62388480

約数和(自身を除く): 33937300

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 109, 124, 155, 218, 310, 421, 436, 545, 620, 842, 1090, 1684, 2105, 2180, 3379, 4210, 6758, 8420, 13051, 13516, 16895, 26102, 33790, 45889, 52204, 65255, 67580, 91778, 130510, 183556, 229445, 261020, 458890, 917780, 1422559, 2845118, 5690236, 7112795, 14225590, 28451180]

約数ペア:

[(1, 28451180), (2, 14225590), (4, 7112795), (5, 5690236), (10, 2845118), (20, 1422559), (31, 917780), (62, 458890), (109, 261020), (124, 229445), (155, 183556), (218, 130510), (310, 91778), (421, 67580), (436, 65255), (545, 52204), (620, 45889), (842, 33790), (1090, 26102), (1684, 16895), (2105, 13516), (2180, 13051), (3379, 8420), (4210, 6758)]