256390160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{8501}}^1$

素因数の和:8556

約数の個数: 80

約数和(自身を含む): 664176240

約数和(自身を除く): 407786080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 754, 1040, 1160, 1508, 1885, 2320, 3016, 3770, 6032, 7540, 8501, 15080, 17002, 30160, 34004, 42505, 68008, 85010, 110513, 136016, 170020, 221026, 246529, 340040, 442052, 493058, 552565, 680080, 884104, 986116, 1105130, 1232645, 1768208, 1972232, 2210260, 2465290, 3204877, 3944464, 4420520, 4930580, 6409754, 8841040, 9861160, 12819508, 16024385, 19722320, 25639016, 32048770, 51278032, 64097540, 128195080, 256390160]

約数ペア:

[(1, 256390160), (2, 128195080), (4, 64097540), (5, 51278032), (8, 32048770), (10, 25639016), (13, 19722320), (16, 16024385), (20, 12819508), (26, 9861160), (29, 8841040), (40, 6409754), (52, 4930580), (58, 4420520), (65, 3944464), (80, 3204877), (104, 2465290), (116, 2210260), (130, 1972232), (145, 1768208), (208, 1232645), (232, 1105130), (260, 986116), (290, 884104), (377, 680080), (464, 552565), (520, 493058), (580, 442052), (754, 340040), (1040, 246529), (1160, 221026), (1508, 170020), (1885, 136016), (2320, 110513), (3016, 85010), (3770, 68008), (6032, 42505), (7540, 34004), (8501, 30160), (15080, 17002)]