71345140

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{42979}}^1$

素因数の和:43071

約数の個数: 24

約数和(自身を含む): 151633440

約数和(自身を除く): 80288300

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 42979, 85958, 171916, 214895, 429790, 859580, 3567257, 7134514, 14269028, 17836285, 35672570, 71345140]

約数ペア:

[(1, 71345140), (2, 35672570), (4, 17836285), (5, 14269028), (10, 7134514), (20, 3567257), (83, 859580), (166, 429790), (332, 214895), (415, 171916), (830, 85958), (1660, 42979)]