708156980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{20939}}^1$

素因数の和:21056

約数の個数: 48

約数和(自身を含む): 1583064000

約数和(自身を除く): 874907020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 3382, 6764, 8455, 16910, 20939, 33820, 41878, 83756, 104695, 209390, 397841, 418780, 795682, 1591364, 1863571, 1989205, 3727142, 3978410, 7454284, 7956820, 9317855, 18635710, 35407849, 37271420, 70815698, 141631396, 177039245, 354078490, 708156980]

約数ペア:

[(1, 708156980), (2, 354078490), (4, 177039245), (5, 141631396), (10, 70815698), (19, 37271420), (20, 35407849), (38, 18635710), (76, 9317855), (89, 7956820), (95, 7454284), (178, 3978410), (190, 3727142), (356, 1989205), (380, 1863571), (445, 1591364), (890, 795682), (1691, 418780), (1780, 397841), (3382, 209390), (6764, 104695), (8455, 83756), (16910, 41878), (20939, 33820)]