521305720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1002511}}^1$

素因数の和:1002535

約数の個数: 32

約数和(自身を含む): 1263165120

約数和(自身を除く): 741859400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1002511, 2005022, 4010044, 5012555, 8020088, 10025110, 13032643, 20050220, 26065286, 40100440, 52130572, 65163215, 104261144, 130326430, 260652860, 521305720]

約数ペア:

[(1, 521305720), (2, 260652860), (4, 130326430), (5, 104261144), (8, 65163215), (10, 52130572), (13, 40100440), (20, 26065286), (26, 20050220), (40, 13032643), (52, 10025110), (65, 8020088), (104, 5012555), (130, 4010044), (260, 2005022), (520, 1002511)]