405770690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{240101}}^1$

素因数の和:240134

約数の個数: 24

約数和(自身を含む): 790895988

約数和(自身を除く): 385125298

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 240101, 480202, 1200505, 2401010, 3121313, 6242626, 15606565, 31213130, 40577069, 81154138, 202885345, 405770690]

約数ペア:

[(1, 405770690), (2, 202885345), (5, 81154138), (10, 40577069), (13, 31213130), (26, 15606565), (65, 6242626), (130, 3121313), (169, 2401010), (338, 1200505), (845, 480202), (1690, 240101)]