80494540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1171}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 193745664

約数和(自身を除く): 113251124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 982, 1171, 1964, 2342, 2455, 3437, 4684, 4910, 5855, 6874, 8197, 9820, 11710, 13748, 16394, 17185, 23420, 32788, 34370, 40985, 68740, 81970, 163940, 574961, 1149922, 2299844, 2874805, 4024727, 5749610, 8049454, 11499220, 16098908, 20123635, 40247270, 80494540]

約数ペア:

[(1, 80494540), (2, 40247270), (4, 20123635), (5, 16098908), (7, 11499220), (10, 8049454), (14, 5749610), (20, 4024727), (28, 2874805), (35, 2299844), (70, 1149922), (140, 574961), (491, 163940), (982, 81970), (1171, 68740), (1964, 40985), (2342, 34370), (2455, 32788), (3437, 23420), (4684, 17185), (4910, 16394), (5855, 13748), (6874, 11710), (8197, 9820)]