20084140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3109}}^1$

素因数の和:3154

約数の個数: 48

約数和(自身を含む): 47023200

約数和(自身を除く): 26939060

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3109, 3230, 6218, 6460, 12436, 15545, 31090, 52853, 59071, 62180, 105706, 118142, 211412, 236284, 264265, 295355, 528530, 590710, 1004207, 1057060, 1181420, 2008414, 4016828, 5021035, 10042070, 20084140]

約数ペア:

[(1, 20084140), (2, 10042070), (4, 5021035), (5, 4016828), (10, 2008414), (17, 1181420), (19, 1057060), (20, 1004207), (34, 590710), (38, 528530), (68, 295355), (76, 264265), (85, 236284), (95, 211412), (170, 118142), (190, 105706), (323, 62180), (340, 59071), (380, 52853), (646, 31090), (1292, 15545), (1615, 12436), (3109, 6460), (3230, 6218)]