20953100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:867

約数の個数: 72

約数和(自身を含む): 53434080

約数和(自身を除く): 32480980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 37, 50, 70, 74, 100, 140, 148, 175, 185, 259, 350, 370, 518, 700, 740, 809, 925, 1036, 1295, 1618, 1850, 2590, 3236, 3700, 4045, 5180, 5663, 6475, 8090, 11326, 12950, 16180, 20225, 22652, 25900, 28315, 29933, 40450, 56630, 59866, 80900, 113260, 119732, 141575, 149665, 209531, 283150, 299330, 419062, 566300, 598660, 748325, 838124, 1047655, 1496650, 2095310, 2993300, 4190620, 5238275, 10476550, 20953100]

約数ペア:

[(1, 20953100), (2, 10476550), (4, 5238275), (5, 4190620), (7, 2993300), (10, 2095310), (14, 1496650), (20, 1047655), (25, 838124), (28, 748325), (35, 598660), (37, 566300), (50, 419062), (70, 299330), (74, 283150), (100, 209531), (140, 149665), (148, 141575), (175, 119732), (185, 113260), (259, 80900), (350, 59866), (370, 56630), (518, 40450), (700, 29933), (740, 28315), (809, 25900), (925, 22652), (1036, 20225), (1295, 16180), (1618, 12950), (1850, 11326), (2590, 8090), (3236, 6475), (3700, 5663), (4045, 5180)]