81654412

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1\times {\mathrm{293}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 168920640

約数和(自身を除く): 87266228

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 269, 293, 518, 538, 586, 1036, 1076, 1172, 1883, 2051, 3766, 4102, 7532, 8204, 9953, 10841, 19906, 21682, 39812, 43364, 69671, 75887, 78817, 139342, 151774, 157634, 278684, 303548, 315268, 551719, 1103438, 2206876, 2916229, 5832458, 11664916, 20413603, 40827206, 81654412]

約数ペア:

[(1, 81654412), (2, 40827206), (4, 20413603), (7, 11664916), (14, 5832458), (28, 2916229), (37, 2206876), (74, 1103438), (148, 551719), (259, 315268), (269, 303548), (293, 278684), (518, 157634), (538, 151774), (586, 139342), (1036, 78817), (1076, 75887), (1172, 69671), (1883, 43364), (2051, 39812), (3766, 21682), (4102, 19906), (7532, 10841), (8204, 9953)]