78635890

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1\times {\mathrm{487}}^1$

素因数の和:802

約数の個数: 32

約数和(自身を含む): 144549504

約数和(自身を除く): 65913614

約数列:

[1, 2, 5, 10, 67, 134, 241, 335, 482, 487, 670, 974, 1205, 2410, 2435, 4870, 16147, 32294, 32629, 65258, 80735, 117367, 161470, 163145, 234734, 326290, 586835, 1173670, 7863589, 15727178, 39317945, 78635890]

約数ペア:

[(1, 78635890), (2, 39317945), (5, 15727178), (10, 7863589), (67, 1173670), (134, 586835), (241, 326290), (335, 234734), (482, 163145), (487, 161470), (670, 117367), (974, 80735), (1205, 65258), (2410, 32629), (2435, 32294), (4870, 16147)]