403779220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1552997}}^1$

素因数の和:1553019

約数の個数: 24

約数和(自身を含む): 913162824

約数和(自身を除く): 509383604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1552997, 3105994, 6211988, 7764985, 15529970, 20188961, 31059940, 40377922, 80755844, 100944805, 201889610, 403779220]

約数ペア:

[(1, 403779220), (2, 201889610), (4, 100944805), (5, 80755844), (10, 40377922), (13, 31059940), (20, 20188961), (26, 15529970), (52, 7764985), (65, 6211988), (130, 3105994), (260, 1552997)]