817383940

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{294023}}^1$

素因数の和:294171

約数の個数: 24

約数和(自身を含む): 1728861120

約数和(自身を除く): 911477180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 294023, 588046, 1176092, 1470115, 2940230, 5880460, 40869197, 81738394, 163476788, 204345985, 408691970, 817383940]

約数ペア:

[(1, 817383940), (2, 408691970), (4, 204345985), (5, 163476788), (10, 81738394), (20, 40869197), (139, 5880460), (278, 2940230), (556, 1470115), (695, 1176092), (1390, 588046), (2780, 294023)]