268558720

素因数分解:

$2^7\times 5^1\times {\mathrm{419623}}^1$

素因数の和:419642

約数の個数: 32

約数和(自身を含む): 642024720

約数和(自身を除く): 373466000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 419623, 839246, 1678492, 2098115, 3356984, 4196230, 6713968, 8392460, 13427936, 16784920, 26855872, 33569840, 53711744, 67139680, 134279360, 268558720]

約数ペア:

[(1, 268558720), (2, 134279360), (4, 67139680), (5, 53711744), (8, 33569840), (10, 26855872), (16, 16784920), (20, 13427936), (32, 8392460), (40, 6713968), (64, 4196230), (80, 3356984), (128, 2098115), (160, 1678492), (320, 839246), (640, 419623)]