81275084

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{509}}^1$

素因数の和:734

約数の個数: 48

約数和(自身を含む): 164505600

約数和(自身を除く): 83230516

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 191, 209, 382, 418, 509, 764, 836, 1018, 2036, 2101, 3629, 4202, 5599, 7258, 8404, 9671, 11198, 14516, 19342, 22396, 38684, 39919, 79838, 97219, 106381, 159676, 194438, 212762, 388876, 425524, 1069409, 1847161, 2138818, 3694322, 4277636, 7388644, 20318771, 40637542, 81275084]

約数ペア:

[(1, 81275084), (2, 40637542), (4, 20318771), (11, 7388644), (19, 4277636), (22, 3694322), (38, 2138818), (44, 1847161), (76, 1069409), (191, 425524), (209, 388876), (382, 212762), (418, 194438), (509, 159676), (764, 106381), (836, 97219), (1018, 79838), (2036, 39919), (2101, 38684), (3629, 22396), (4202, 19342), (5599, 14516), (7258, 11198), (8404, 9671)]