8639020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 19756800

約数和(自身を除く): 11117780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 223, 260, 298, 446, 596, 745, 892, 1115, 1490, 1937, 2230, 2899, 2980, 3874, 4460, 5798, 7748, 9685, 11596, 14495, 19370, 28990, 33227, 38740, 57980, 66454, 132908, 166135, 332270, 431951, 664540, 863902, 1727804, 2159755, 4319510, 8639020]

約数ペア:

[(1, 8639020), (2, 4319510), (4, 2159755), (5, 1727804), (10, 863902), (13, 664540), (20, 431951), (26, 332270), (52, 166135), (65, 132908), (130, 66454), (149, 57980), (223, 38740), (260, 33227), (298, 28990), (446, 19370), (596, 14495), (745, 11596), (892, 9685), (1115, 7748), (1490, 5798), (1937, 4460), (2230, 3874), (2899, 2980)]