66408916

素因数分解:

$2^2\times 7^3\times {\mathrm{97}}^1\times {\mathrm{499}}^1$

素因数の和:621

約数の個数: 48

約数和(自身を含む): 137200000

約数和(自身を除く): 70791084

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 194, 196, 343, 388, 499, 679, 686, 998, 1358, 1372, 1996, 2716, 3493, 4753, 6986, 9506, 13972, 19012, 24451, 33271, 48403, 48902, 66542, 96806, 97804, 133084, 171157, 193612, 338821, 342314, 677642, 684628, 1355284, 2371747, 4743494, 9486988, 16602229, 33204458, 66408916]

約数ペア:

[(1, 66408916), (2, 33204458), (4, 16602229), (7, 9486988), (14, 4743494), (28, 2371747), (49, 1355284), (97, 684628), (98, 677642), (194, 342314), (196, 338821), (343, 193612), (388, 171157), (499, 133084), (679, 97804), (686, 96806), (998, 66542), (1358, 48902), (1372, 48403), (1996, 33271), (2716, 24451), (3493, 19012), (4753, 13972), (6986, 9506)]