81004645

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1\times {\mathrm{761}}^1$

素因数の和:1176

約数の個数: 16

約数和(自身を含む): 99212400

約数和(自身を除く): 18207755

約数列:

[1, 5, 61, 305, 349, 761, 1745, 3805, 21289, 46421, 106445, 232105, 265589, 1327945, 16200929, 81004645]

約数ペア:

[(1, 81004645), (5, 16200929), (61, 1327945), (305, 265589), (349, 232105), (761, 106445), (1745, 46421), (3805, 21289)]