20717700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1303}}^1$

素因数の和:1373

約数の個数: 72

約数和(自身を含む): 61121088

約数和(自身を除く): 40403388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 53, 60, 75, 100, 106, 150, 159, 212, 265, 300, 318, 530, 636, 795, 1060, 1303, 1325, 1590, 2606, 2650, 3180, 3909, 3975, 5212, 5300, 6515, 7818, 7950, 13030, 15636, 15900, 19545, 26060, 32575, 39090, 65150, 69059, 78180, 97725, 130300, 138118, 195450, 207177, 276236, 345295, 390900, 414354, 690590, 828708, 1035885, 1381180, 1726475, 2071770, 3452950, 4143540, 5179425, 6905900, 10358850, 20717700]

約数ペア:

[(1, 20717700), (2, 10358850), (3, 6905900), (4, 5179425), (5, 4143540), (6, 3452950), (10, 2071770), (12, 1726475), (15, 1381180), (20, 1035885), (25, 828708), (30, 690590), (50, 414354), (53, 390900), (60, 345295), (75, 276236), (100, 207177), (106, 195450), (150, 138118), (159, 130300), (212, 97725), (265, 78180), (300, 69059), (318, 65150), (530, 39090), (636, 32575), (795, 26060), (1060, 19545), (1303, 15900), (1325, 15636), (1590, 13030), (2606, 7950), (2650, 7818), (3180, 6515), (3909, 5300), (3975, 5212)]