5721000920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1028957}}^1$

素因数の和:1029107

約数の個数: 32

約数和(自身を含む): 12964870800

約数和(自身を除く): 7243869880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 1028957, 2057914, 4115828, 5144785, 8231656, 10289570, 20579140, 41158280, 143025023, 286050046, 572100092, 715125115, 1144200184, 1430250230, 2860500460, 5721000920]

約数ペア:

[(1, 5721000920), (2, 2860500460), (4, 1430250230), (5, 1144200184), (8, 715125115), (10, 572100092), (20, 286050046), (40, 143025023), (139, 41158280), (278, 20579140), (556, 10289570), (695, 8231656), (1112, 5144785), (1390, 4115828), (2780, 2057914), (5560, 1028957)]