104205440

素因数分解:

$2^7\times 5^1\times {\mathrm{162821}}^1$

素因数の和:162840

約数の個数: 32

約数和(自身を含む): 249117660

約数和(自身を除く): 144912220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 162821, 325642, 651284, 814105, 1302568, 1628210, 2605136, 3256420, 5210272, 6512840, 10420544, 13025680, 20841088, 26051360, 52102720, 104205440]

約数ペア:

[(1, 104205440), (2, 52102720), (4, 26051360), (5, 20841088), (8, 13025680), (10, 10420544), (16, 6512840), (20, 5210272), (32, 3256420), (40, 2605136), (64, 1628210), (80, 1302568), (128, 814105), (160, 651284), (320, 325642), (640, 162821)]