66855760

素因数分解:

$2^4\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1033}}^1$

素因数の和:1855

約数の個数: 40

約数和(自身を含む): 155782440

約数和(自身を除く): 88926680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809, 1033, 1618, 2066, 3236, 4045, 4132, 5165, 6472, 8090, 8264, 10330, 12944, 16180, 16528, 20660, 32360, 41320, 64720, 82640, 835697, 1671394, 3342788, 4178485, 6685576, 8356970, 13371152, 16713940, 33427880, 66855760]

約数ペア:

[(1, 66855760), (2, 33427880), (4, 16713940), (5, 13371152), (8, 8356970), (10, 6685576), (16, 4178485), (20, 3342788), (40, 1671394), (80, 835697), (809, 82640), (1033, 64720), (1618, 41320), (2066, 32360), (3236, 20660), (4045, 16528), (4132, 16180), (5165, 12944), (6472, 10330), (8090, 8264)]