77776816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{5581}}^1$

素因数の和:5669

約数の個数: 40

約数和(自身を含む): 164735984

約数和(自身を除く): 86959168

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1742, 3484, 5581, 6968, 11162, 13936, 22324, 44648, 72553, 89296, 145106, 290212, 373927, 580424, 747854, 1160848, 1495708, 2991416, 4861051, 5982832, 9722102, 19444204, 38888408, 77776816]

約数ペア:

[(1, 77776816), (2, 38888408), (4, 19444204), (8, 9722102), (13, 5982832), (16, 4861051), (26, 2991416), (52, 1495708), (67, 1160848), (104, 747854), (134, 580424), (208, 373927), (268, 290212), (536, 145106), (871, 89296), (1072, 72553), (1742, 44648), (3484, 22324), (5581, 13936), (6968, 11162)]