20095140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25763}}^1$

素因数の和:25788

約数の個数: 48

約数和(自身を含む): 60596928

約数和(自身を除く): 40501788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25763, 51526, 77289, 103052, 128815, 154578, 257630, 309156, 334919, 386445, 515260, 669838, 772890, 1004757, 1339676, 1545780, 1674595, 2009514, 3349190, 4019028, 5023785, 6698380, 10047570, 20095140]

約数ペア:

[(1, 20095140), (2, 10047570), (3, 6698380), (4, 5023785), (5, 4019028), (6, 3349190), (10, 2009514), (12, 1674595), (13, 1545780), (15, 1339676), (20, 1004757), (26, 772890), (30, 669838), (39, 515260), (52, 386445), (60, 334919), (65, 309156), (78, 257630), (130, 154578), (156, 128815), (195, 103052), (260, 77289), (390, 51526), (780, 25763)]