67666660

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{379}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 145555200

約数和(自身を除く): 77888540

約数列:

[1, 2, 4, 5, 10, 20, 79, 113, 158, 226, 316, 379, 395, 452, 565, 758, 790, 1130, 1516, 1580, 1895, 2260, 3790, 7580, 8927, 17854, 29941, 35708, 42827, 44635, 59882, 85654, 89270, 119764, 149705, 171308, 178540, 214135, 299410, 428270, 598820, 856540, 3383333, 6766666, 13533332, 16916665, 33833330, 67666660]

約数ペア:

[(1, 67666660), (2, 33833330), (4, 16916665), (5, 13533332), (10, 6766666), (20, 3383333), (79, 856540), (113, 598820), (158, 428270), (226, 299410), (316, 214135), (379, 178540), (395, 171308), (452, 149705), (565, 119764), (758, 89270), (790, 85654), (1130, 59882), (1516, 44635), (1580, 42827), (1895, 35708), (2260, 29941), (3790, 17854), (7580, 8927)]