20881630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{577}}^1$

素因数の和:649

約数の個数: 64

約数和(自身を含む): 47941632

約数和(自身を除く): 27060002

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 47, 55, 70, 77, 94, 110, 154, 235, 329, 385, 470, 517, 577, 658, 770, 1034, 1154, 1645, 2585, 2885, 3290, 3619, 4039, 5170, 5770, 6347, 7238, 8078, 12694, 18095, 20195, 27119, 31735, 36190, 40390, 44429, 54238, 63470, 88858, 135595, 189833, 222145, 271190, 298309, 379666, 444290, 596618, 949165, 1491545, 1898330, 2088163, 2983090, 4176326, 10440815, 20881630]

約数ペア:

[(1, 20881630), (2, 10440815), (5, 4176326), (7, 2983090), (10, 2088163), (11, 1898330), (14, 1491545), (22, 949165), (35, 596618), (47, 444290), (55, 379666), (70, 298309), (77, 271190), (94, 222145), (110, 189833), (154, 135595), (235, 88858), (329, 63470), (385, 54238), (470, 44429), (517, 40390), (577, 36190), (658, 31735), (770, 27119), (1034, 20195), (1154, 18095), (1645, 12694), (2585, 8078), (2885, 7238), (3290, 6347), (3619, 5770), (4039, 5170)]