12776660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{313}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 29171856

約数和(自身を除く): 16395196

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 313, 314, 626, 628, 785, 1252, 1565, 1570, 2041, 3130, 3140, 4069, 4082, 6260, 8138, 8164, 10205, 16276, 20345, 20410, 40690, 40820, 49141, 81380, 98282, 196564, 245705, 491410, 638833, 982820, 1277666, 2555332, 3194165, 6388330, 12776660]

約数ペア:

[(1, 12776660), (2, 6388330), (4, 3194165), (5, 2555332), (10, 1277666), (13, 982820), (20, 638833), (26, 491410), (52, 245705), (65, 196564), (130, 98282), (157, 81380), (260, 49141), (313, 40820), (314, 40690), (626, 20410), (628, 20345), (785, 16276), (1252, 10205), (1565, 8164), (1570, 8138), (2041, 6260), (3130, 4082), (3140, 4069)]