81061645

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 114773760

約数和(自身を除く): 33712115

約数列:

[1, 5, 7, 35, 53, 89, 265, 371, 445, 491, 623, 1855, 2455, 3115, 3437, 4717, 17185, 23585, 26023, 33019, 43699, 130115, 165095, 182161, 218495, 305893, 910805, 1529465, 2316047, 11580235, 16212329, 81061645]

約数ペア:

[(1, 81061645), (5, 16212329), (7, 11580235), (35, 2316047), (53, 1529465), (89, 910805), (265, 305893), (371, 218495), (445, 182161), (491, 165095), (623, 130115), (1855, 43699), (2455, 33019), (3115, 26023), (3437, 23585), (4717, 17185)]