129415820

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{29017}}^1$

素因数の和:29249

約数の個数: 24

約数和(自身を含む): 273001344

約数和(自身を除く): 143585524

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 29017, 58034, 116068, 145085, 290170, 580340, 6470791, 12941582, 25883164, 32353955, 64707910, 129415820]

約数ペア:

[(1, 129415820), (2, 64707910), (4, 32353955), (5, 25883164), (10, 12941582), (20, 6470791), (223, 580340), (446, 290170), (892, 145085), (1115, 116068), (2230, 58034), (4460, 29017)]