20879940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8093}}^1$

素因数の和:8148

約数の個数: 48

約数和(自身を含む): 59830848

約数和(自身を除く): 38950908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8093, 16186, 24279, 32372, 40465, 48558, 80930, 97116, 121395, 161860, 242790, 347999, 485580, 695998, 1043997, 1391996, 1739995, 2087994, 3479990, 4175988, 5219985, 6959980, 10439970, 20879940]

約数ペア:

[(1, 20879940), (2, 10439970), (3, 6959980), (4, 5219985), (5, 4175988), (6, 3479990), (10, 2087994), (12, 1739995), (15, 1391996), (20, 1043997), (30, 695998), (43, 485580), (60, 347999), (86, 242790), (129, 161860), (172, 121395), (215, 97116), (258, 80930), (430, 48558), (516, 40465), (645, 32372), (860, 24279), (1290, 16186), (2580, 8093)]