78780842

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2749}}^1$

素因数の和:2870

約数の個数: 32

約数和(自身を含む): 142560000

約数和(自身を除く): 63779158

約数列:

[1, 2, 7, 14, 23, 46, 89, 161, 178, 322, 623, 1246, 2047, 2749, 4094, 5498, 14329, 19243, 28658, 38486, 63227, 126454, 244661, 442589, 489322, 885178, 1712627, 3425254, 5627203, 11254406, 39390421, 78780842]

約数ペア:

[(1, 78780842), (2, 39390421), (7, 11254406), (14, 5627203), (23, 3425254), (46, 1712627), (89, 885178), (161, 489322), (178, 442589), (322, 244661), (623, 126454), (1246, 63227), (2047, 38486), (2749, 28658), (4094, 19243), (5498, 14329)]