64219340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{421}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 140374080

約数和(自身を除く): 76154740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 263, 290, 421, 526, 580, 842, 1052, 1315, 1684, 2105, 2630, 4210, 5260, 7627, 8420, 12209, 15254, 24418, 30508, 38135, 48836, 61045, 76270, 110723, 122090, 152540, 221446, 244180, 442892, 553615, 1107230, 2214460, 3210967, 6421934, 12843868, 16054835, 32109670, 64219340]

約数ペア:

[(1, 64219340), (2, 32109670), (4, 16054835), (5, 12843868), (10, 6421934), (20, 3210967), (29, 2214460), (58, 1107230), (116, 553615), (145, 442892), (263, 244180), (290, 221446), (421, 152540), (526, 122090), (580, 110723), (842, 76270), (1052, 61045), (1315, 48836), (1684, 38135), (2105, 30508), (2630, 24418), (4210, 15254), (5260, 12209), (7627, 8420)]