8402920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2531}}^1$

素因数の和:2625

約数の個数: 32

約数和(自身を含む): 19141920

約数和(自身を除く): 10739000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 2531, 3320, 5062, 10124, 12655, 20248, 25310, 50620, 101240, 210073, 420146, 840292, 1050365, 1680584, 2100730, 4201460, 8402920]

約数ペア:

[(1, 8402920), (2, 4201460), (4, 2100730), (5, 1680584), (8, 1050365), (10, 840292), (20, 420146), (40, 210073), (83, 101240), (166, 50620), (332, 25310), (415, 20248), (664, 12655), (830, 10124), (1660, 5062), (2531, 3320)]