87117620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{811}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 189072576

約数和(自身を除く): 101954956

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 131, 164, 205, 262, 410, 524, 655, 811, 820, 1310, 1622, 2620, 3244, 4055, 5371, 8110, 10742, 16220, 21484, 26855, 33251, 53710, 66502, 106241, 107420, 133004, 166255, 212482, 332510, 424964, 531205, 665020, 1062410, 2124820, 4355881, 8711762, 17423524, 21779405, 43558810, 87117620]

約数ペア:

[(1, 87117620), (2, 43558810), (4, 21779405), (5, 17423524), (10, 8711762), (20, 4355881), (41, 2124820), (82, 1062410), (131, 665020), (164, 531205), (205, 424964), (262, 332510), (410, 212482), (524, 166255), (655, 133004), (811, 107420), (820, 106241), (1310, 66502), (1622, 53710), (2620, 33251), (3244, 26855), (4055, 21484), (5371, 16220), (8110, 10742)]