1276340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4909}}^1$

素因数の和:4931

約数の個数: 24

約数和(自身を含む): 2887080

約数和(自身を除く): 1610740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4909, 9818, 19636, 24545, 49090, 63817, 98180, 127634, 255268, 319085, 638170, 1276340]

約数ペア:

[(1, 1276340), (2, 638170), (4, 319085), (5, 255268), (10, 127634), (13, 98180), (20, 63817), (26, 49090), (52, 24545), (65, 19636), (130, 9818), (260, 4909)]