268222760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{515813}}^1$

素因数の和:515837

約数の個数: 32

約数和(自身を含む): 649925640

約数和(自身を除く): 381702880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 515813, 1031626, 2063252, 2579065, 4126504, 5158130, 6705569, 10316260, 13411138, 20632520, 26822276, 33527845, 53644552, 67055690, 134111380, 268222760]

約数ペア:

[(1, 268222760), (2, 134111380), (4, 67055690), (5, 53644552), (8, 33527845), (10, 26822276), (13, 20632520), (20, 13411138), (26, 10316260), (40, 6705569), (52, 5158130), (65, 4126504), (104, 2579065), (130, 2063252), (260, 1031626), (520, 515813)]