16878820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{120563}}^1$

素因数の和:120579

約数の個数: 24

約数和(自身を含む): 40509504

約数和(自身を除く): 23630684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 120563, 241126, 482252, 602815, 843941, 1205630, 1687882, 2411260, 3375764, 4219705, 8439410, 16878820]

約数ペア:

[(1, 16878820), (2, 8439410), (4, 4219705), (5, 3375764), (7, 2411260), (10, 1687882), (14, 1205630), (20, 843941), (28, 602815), (35, 482252), (70, 241126), (140, 120563)]