20016420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{743}}^1$

素因数の和:1204

約数の個数: 48

約数和(自身を含む): 56246400

約数和(自身を除く): 36229980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 449, 743, 898, 1347, 1486, 1796, 2229, 2245, 2694, 2972, 3715, 4458, 4490, 5388, 6735, 7430, 8916, 8980, 11145, 13470, 14860, 22290, 26940, 44580, 333607, 667214, 1000821, 1334428, 1668035, 2001642, 3336070, 4003284, 5004105, 6672140, 10008210, 20016420]

約数ペア:

[(1, 20016420), (2, 10008210), (3, 6672140), (4, 5004105), (5, 4003284), (6, 3336070), (10, 2001642), (12, 1668035), (15, 1334428), (20, 1000821), (30, 667214), (60, 333607), (449, 44580), (743, 26940), (898, 22290), (1347, 14860), (1486, 13470), (1796, 11145), (2229, 8980), (2245, 8916), (2694, 7430), (2972, 6735), (3715, 5388), (4458, 4490)]