2493669556220

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{499}}^1\times {\mathrm{610921}}^1$

素因数の和:611838

約数の個数: 48

約数和(自身を含む): 5260038420000

約数和(自身を除く): 2766368863780

約数列:

[1, 2, 4, 5, 10, 20, 409, 499, 818, 998, 1636, 1996, 2045, 2495, 4090, 4990, 8180, 9980, 204091, 408182, 610921, 816364, 1020455, 1221842, 2040910, 2443684, 3054605, 4081820, 6109210, 12218420, 249866689, 304849579, 499733378, 609699158, 999466756, 1219398316, 1249333445, 1524247895, 2498666890, 3048495790, 4997333780, 6096991580, 124683477811, 249366955622, 498733911244, 623417389055, 1246834778110, 2493669556220]

約数ペア:

[(1, 2493669556220), (2, 1246834778110), (4, 623417389055), (5, 498733911244), (10, 249366955622), (20, 124683477811), (409, 6096991580), (499, 4997333780), (818, 3048495790), (998, 2498666890), (1636, 1524247895), (1996, 1249333445), (2045, 1219398316), (2495, 999466756), (4090, 609699158), (4990, 499733378), (8180, 304849579), (9980, 249866689), (204091, 12218420), (408182, 6109210), (610921, 4081820), (816364, 3054605), (1020455, 2443684), (1221842, 2040910)]