66243920

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{3299}}^1$

素因数の和:3563

約数の個数: 40

約数和(自身を含む): 154677600

約数和(自身を除く): 88433680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 3299, 4016, 5020, 6598, 10040, 13196, 16495, 20080, 26392, 32990, 52784, 65980, 131960, 263920, 828049, 1656098, 3312196, 4140245, 6624392, 8280490, 13248784, 16560980, 33121960, 66243920]

約数ペア:

[(1, 66243920), (2, 33121960), (4, 16560980), (5, 13248784), (8, 8280490), (10, 6624392), (16, 4140245), (20, 3312196), (40, 1656098), (80, 828049), (251, 263920), (502, 131960), (1004, 65980), (1255, 52784), (2008, 32990), (2510, 26392), (3299, 20080), (4016, 16495), (5020, 13196), (6598, 10040)]