668836805

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{4441}}^1$

素因数の和:4797

約数の個数: 32

約数和(自身を含む): 991027968

約数和(自身を除く): 322191163

約数列:

[1, 5, 7, 13, 35, 65, 91, 331, 455, 1655, 2317, 4303, 4441, 11585, 21515, 22205, 30121, 31087, 57733, 150605, 155435, 288665, 404131, 1469971, 2020655, 7349855, 10289797, 19109623, 51448985, 95548115, 133767361, 668836805]

約数ペア:

[(1, 668836805), (5, 133767361), (7, 95548115), (13, 51448985), (35, 19109623), (65, 10289797), (91, 7349855), (331, 2020655), (455, 1469971), (1655, 404131), (2317, 288665), (4303, 155435), (4441, 150605), (11585, 57733), (21515, 31087), (22205, 30121)]