389557855

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{2029}}^1$

素因数の和:2143

約数の個数: 32

約数和(自身を含む): 514483200

約数和(自身を除く): 124925345

約数列:

[1, 5, 19, 43, 47, 95, 215, 235, 817, 893, 2021, 2029, 4085, 4465, 10105, 10145, 38399, 38551, 87247, 95363, 191995, 192755, 436235, 476815, 1657693, 1811897, 4100609, 8288465, 9059485, 20503045, 77911571, 389557855]

約数ペア:

[(1, 389557855), (5, 77911571), (19, 20503045), (43, 9059485), (47, 8288465), (95, 4100609), (215, 1811897), (235, 1657693), (817, 476815), (893, 436235), (2021, 192755), (2029, 191995), (4085, 95363), (4465, 87247), (10105, 38551), (10145, 38399)]