81307018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{857}}^1$

素因数の和:1002

約数の個数: 32

約数和(自身を含む): 136216080

約数和(自身を除く): 54909062

約数列:

[1, 2, 13, 26, 41, 82, 89, 178, 533, 857, 1066, 1157, 1714, 2314, 3649, 7298, 11141, 22282, 35137, 47437, 70274, 76273, 94874, 152546, 456781, 913562, 991549, 1983098, 3127193, 6254386, 40653509, 81307018]

約数ペア:

[(1, 81307018), (2, 40653509), (13, 6254386), (26, 3127193), (41, 1983098), (82, 991549), (89, 913562), (178, 456781), (533, 152546), (857, 94874), (1066, 76273), (1157, 70274), (1714, 47437), (2314, 35137), (3649, 22282), (7298, 11141)]