20786673460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2749}}^1\times {\mathrm{54011}}^1$

素因数の和:56776

約数の個数: 48

約数和(自身を含む): 49907088000

約数和(自身を除く): 29120414540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2749, 5498, 10996, 13745, 19243, 27490, 38486, 54011, 54980, 76972, 96215, 108022, 192430, 216044, 270055, 378077, 384860, 540110, 756154, 1080220, 1512308, 1890385, 3780770, 7561540, 148476239, 296952478, 593904956, 742381195, 1039333673, 1484762390, 2078667346, 2969524780, 4157334692, 5196668365, 10393336730, 20786673460]

約数ペア:

[(1, 20786673460), (2, 10393336730), (4, 5196668365), (5, 4157334692), (7, 2969524780), (10, 2078667346), (14, 1484762390), (20, 1039333673), (28, 742381195), (35, 593904956), (70, 296952478), (140, 148476239), (2749, 7561540), (5498, 3780770), (10996, 1890385), (13745, 1512308), (19243, 1080220), (27490, 756154), (38486, 540110), (54011, 384860), (54980, 378077), (76972, 270055), (96215, 216044), (108022, 192430)]