285344680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{80153}}^1$

素因数の和:80253

約数の個数: 32

約数和(自身を含む): 649247400

約数和(自身を除く): 363902720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 80153, 160306, 320612, 400765, 641224, 801530, 1603060, 3206120, 7133617, 14267234, 28534468, 35668085, 57068936, 71336170, 142672340, 285344680]

約数ペア:

[(1, 285344680), (2, 142672340), (4, 71336170), (5, 57068936), (8, 35668085), (10, 28534468), (20, 14267234), (40, 7133617), (89, 3206120), (178, 1603060), (356, 801530), (445, 641224), (712, 400765), (890, 320612), (1780, 160306), (3560, 80153)]