249575890

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1\times {\mathrm{439}}^1$

素因数の和:994

約数の個数: 32

約数和(自身を含む): 454608000

約数和(自身を除く): 205032110

約数列:

[1, 2, 5, 10, 139, 278, 409, 439, 695, 818, 878, 1390, 2045, 2195, 4090, 4390, 56851, 61021, 113702, 122042, 179551, 284255, 305105, 359102, 568510, 610210, 897755, 1795510, 24957589, 49915178, 124787945, 249575890]

約数ペア:

[(1, 249575890), (2, 124787945), (5, 49915178), (10, 24957589), (139, 1795510), (278, 897755), (409, 610210), (439, 568510), (695, 359102), (818, 305105), (878, 284255), (1390, 179551), (2045, 122042), (2195, 113702), (4090, 61021), (4390, 56851)]