81451165

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 109921536

約数和(自身を除く): 28470371

約数列:

[1, 5, 17, 23, 61, 85, 115, 305, 391, 683, 1037, 1403, 1955, 3415, 5185, 7015, 11611, 15709, 23851, 41663, 58055, 78545, 119255, 208315, 267053, 708271, 958249, 1335265, 3541355, 4791245, 16290233, 81451165]

約数ペア:

[(1, 81451165), (5, 16290233), (17, 4791245), (23, 3541355), (61, 1335265), (85, 958249), (115, 708271), (305, 267053), (391, 208315), (683, 119255), (1037, 78545), (1403, 58055), (1955, 41663), (3415, 23851), (5185, 15709), (7015, 11611)]