72557840

素因数分解:

$2^4\times 5^1\times {\mathrm{906973}}^1$

素因数の和:906986

約数の個数: 20

約数和(自身を含む): 168697164

約数和(自身を除く): 96139324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 906973, 1813946, 3627892, 4534865, 7255784, 9069730, 14511568, 18139460, 36278920, 72557840]

約数ペア:

[(1, 72557840), (2, 36278920), (4, 18139460), (5, 14511568), (8, 9069730), (10, 7255784), (16, 4534865), (20, 3627892), (40, 1813946), (80, 906973)]