8170340

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 18009264

約数和(自身を除く): 9838924

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 181, 185, 244, 305, 362, 370, 610, 724, 740, 905, 1220, 1810, 2257, 3620, 4514, 6697, 9028, 11041, 11285, 13394, 22082, 22570, 26788, 33485, 44164, 45140, 55205, 66970, 110410, 133940, 220820, 408517, 817034, 1634068, 2042585, 4085170, 8170340]

約数ペア:

[(1, 8170340), (2, 4085170), (4, 2042585), (5, 1634068), (10, 817034), (20, 408517), (37, 220820), (61, 133940), (74, 110410), (122, 66970), (148, 55205), (181, 45140), (185, 44164), (244, 33485), (305, 26788), (362, 22570), (370, 22082), (610, 13394), (724, 11285), (740, 11041), (905, 9028), (1220, 6697), (1810, 4514), (2257, 3620)]