389799740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{3181}}^1$

素因数の和:3758

約数の個数: 48

約数和(自身を含む): 894880224

約数和(自身を除く): 505080484

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 557, 1114, 2228, 2785, 3181, 5570, 6127, 6362, 11140, 12254, 12724, 15905, 24508, 30635, 31810, 34991, 61270, 63620, 69982, 122540, 139964, 174955, 349910, 699820, 1771817, 3543634, 7087268, 8859085, 17718170, 19489987, 35436340, 38979974, 77959948, 97449935, 194899870, 389799740]

約数ペア:

[(1, 389799740), (2, 194899870), (4, 97449935), (5, 77959948), (10, 38979974), (11, 35436340), (20, 19489987), (22, 17718170), (44, 8859085), (55, 7087268), (110, 3543634), (220, 1771817), (557, 699820), (1114, 349910), (2228, 174955), (2785, 139964), (3181, 122540), (5570, 69982), (6127, 63620), (6362, 61270), (11140, 34991), (12254, 31810), (12724, 30635), (15905, 24508)]