661006352

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1091}}^1\times {\mathrm{1993}}^1$

素因数の和:3111

約数の個数: 40

約数和(自身を含む): 1350017760

約数和(自身を除く): 689011408

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1091, 1993, 2182, 3986, 4364, 7972, 8728, 15944, 17456, 20729, 31888, 37867, 41458, 75734, 82916, 151468, 165832, 302936, 331664, 605872, 2174363, 4348726, 8697452, 17394904, 34789808, 41312897, 82625794, 165251588, 330503176, 661006352]

約数ペア:

[(1, 661006352), (2, 330503176), (4, 165251588), (8, 82625794), (16, 41312897), (19, 34789808), (38, 17394904), (76, 8697452), (152, 4348726), (304, 2174363), (1091, 605872), (1993, 331664), (2182, 302936), (3986, 165832), (4364, 151468), (7972, 82916), (8728, 75734), (15944, 41458), (17456, 37867), (20729, 31888)]