78638758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{449}}^1$

素因数の和:900

約数の個数: 32

約数和(自身を含む): 136080000

約数和(自身を除く): 57441242

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 419, 449, 838, 898, 4609, 4939, 7961, 8531, 9218, 9878, 15922, 17062, 87571, 93841, 175142, 187682, 188131, 376262, 2069441, 3574489, 4138882, 7148978, 39319379, 78638758]

約数ペア:

[(1, 78638758), (2, 39319379), (11, 7148978), (19, 4138882), (22, 3574489), (38, 2069441), (209, 376262), (418, 188131), (419, 187682), (449, 175142), (838, 93841), (898, 87571), (4609, 17062), (4939, 15922), (7961, 9878), (8531, 9218)]