66821378

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:602

約数の個数: 32

約数和(自身を含む): 111041280

約数和(自身を除く): 44219902

約数列:

[1, 2, 13, 26, 67, 89, 134, 178, 431, 862, 871, 1157, 1742, 2314, 5603, 5963, 11206, 11926, 28877, 38359, 57754, 76718, 77519, 155038, 375401, 498667, 750802, 997334, 2570053, 5140106, 33410689, 66821378]

約数ペア:

[(1, 66821378), (2, 33410689), (13, 5140106), (26, 2570053), (67, 997334), (89, 750802), (134, 498667), (178, 375401), (431, 155038), (862, 77519), (871, 76718), (1157, 57754), (1742, 38359), (2314, 28877), (5603, 11926), (5963, 11206)]