89540140

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{66821}}^1$

素因数の和:66897

約数の個数: 24

約数和(自身を含む): 190843632

約数和(自身を除く): 101303492

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 66821, 133642, 267284, 334105, 668210, 1336420, 4477007, 8954014, 17908028, 22385035, 44770070, 89540140]

約数ペア:

[(1, 89540140), (2, 44770070), (4, 22385035), (5, 17908028), (10, 8954014), (20, 4477007), (67, 1336420), (134, 668210), (268, 334105), (335, 267284), (670, 133642), (1340, 66821)]