38580440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 91152000

約数和(自身を除く): 52571560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 79, 116, 145, 158, 232, 290, 316, 395, 421, 580, 632, 790, 842, 1160, 1580, 1684, 2105, 2291, 3160, 3368, 4210, 4582, 8420, 9164, 11455, 12209, 16840, 18328, 22910, 24418, 33259, 45820, 48836, 61045, 66518, 91640, 97672, 122090, 133036, 166295, 244180, 266072, 332590, 488360, 665180, 964511, 1330360, 1929022, 3858044, 4822555, 7716088, 9645110, 19290220, 38580440]

約数ペア:

[(1, 38580440), (2, 19290220), (4, 9645110), (5, 7716088), (8, 4822555), (10, 3858044), (20, 1929022), (29, 1330360), (40, 964511), (58, 665180), (79, 488360), (116, 332590), (145, 266072), (158, 244180), (232, 166295), (290, 133036), (316, 122090), (395, 97672), (421, 91640), (580, 66518), (632, 61045), (790, 48836), (842, 45820), (1160, 33259), (1580, 24418), (1684, 22910), (2105, 18328), (2291, 16840), (3160, 12209), (3368, 11455), (4210, 9164), (4582, 8420)]