20671920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28711}}^1$

素因数の和:28730

約数の個数: 60

約数和(自身を含む): 69425616

約数和(自身を除く): 48753696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28711, 57422, 86133, 114844, 143555, 172266, 229688, 258399, 287110, 344532, 430665, 459376, 516798, 574220, 689064, 861330, 1033596, 1148440, 1291995, 1378128, 1722660, 2067192, 2296880, 2583990, 3445320, 4134384, 5167980, 6890640, 10335960, 20671920]

約数ペア:

[(1, 20671920), (2, 10335960), (3, 6890640), (4, 5167980), (5, 4134384), (6, 3445320), (8, 2583990), (9, 2296880), (10, 2067192), (12, 1722660), (15, 1378128), (16, 1291995), (18, 1148440), (20, 1033596), (24, 861330), (30, 689064), (36, 574220), (40, 516798), (45, 459376), (48, 430665), (60, 344532), (72, 287110), (80, 258399), (90, 229688), (120, 172266), (144, 143555), (180, 114844), (240, 86133), (360, 57422), (720, 28711)]