19883490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:787

約数の個数: 64

約数和(自身を含む): 52721280

約数和(自身を除く): 32837790

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 89, 110, 165, 178, 267, 330, 445, 534, 677, 890, 979, 1335, 1354, 1958, 2031, 2670, 2937, 3385, 4062, 4895, 5874, 6770, 7447, 9790, 10155, 14685, 14894, 20310, 22341, 29370, 37235, 44682, 60253, 74470, 111705, 120506, 180759, 223410, 301265, 361518, 602530, 662783, 903795, 1325566, 1807590, 1988349, 3313915, 3976698, 6627830, 9941745, 19883490]

約数ペア:

[(1, 19883490), (2, 9941745), (3, 6627830), (5, 3976698), (6, 3313915), (10, 1988349), (11, 1807590), (15, 1325566), (22, 903795), (30, 662783), (33, 602530), (55, 361518), (66, 301265), (89, 223410), (110, 180759), (165, 120506), (178, 111705), (267, 74470), (330, 60253), (445, 44682), (534, 37235), (677, 29370), (890, 22341), (979, 20310), (1335, 14894), (1354, 14685), (1958, 10155), (2031, 9790), (2670, 7447), (2937, 6770), (3385, 5874), (4062, 4895)]