20256812

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 18934228

約数列:

[1, 2, 4, 19, 38, 47, 53, 76, 94, 106, 107, 188, 212, 214, 428, 893, 1007, 1786, 2014, 2033, 2491, 3572, 4028, 4066, 4982, 5029, 5671, 8132, 9964, 10058, 11342, 20116, 22684, 47329, 94658, 95551, 107749, 189316, 191102, 215498, 266537, 382204, 430996, 533074, 1066148, 5064203, 10128406, 20256812]

約数ペア:

[(1, 20256812), (2, 10128406), (4, 5064203), (19, 1066148), (38, 533074), (47, 430996), (53, 382204), (76, 266537), (94, 215498), (106, 191102), (107, 189316), (188, 107749), (212, 95551), (214, 94658), (428, 47329), (893, 22684), (1007, 20116), (1786, 11342), (2014, 10058), (2033, 9964), (2491, 8132), (3572, 5671), (4028, 5029), (4066, 4982)]