20889570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1847}}^1$

素因数の和:1899

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 34993950

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 29, 30, 39, 58, 65, 78, 87, 130, 145, 174, 195, 290, 377, 390, 435, 754, 870, 1131, 1847, 1885, 2262, 3694, 3770, 5541, 5655, 9235, 11082, 11310, 18470, 24011, 27705, 48022, 53563, 55410, 72033, 107126, 120055, 144066, 160689, 240110, 267815, 321378, 360165, 535630, 696319, 720330, 803445, 1392638, 1606890, 2088957, 3481595, 4177914, 6963190, 10444785, 20889570]

約数ペア:

[(1, 20889570), (2, 10444785), (3, 6963190), (5, 4177914), (6, 3481595), (10, 2088957), (13, 1606890), (15, 1392638), (26, 803445), (29, 720330), (30, 696319), (39, 535630), (58, 360165), (65, 321378), (78, 267815), (87, 240110), (130, 160689), (145, 144066), (174, 120055), (195, 107126), (290, 72033), (377, 55410), (390, 53563), (435, 48022), (754, 27705), (870, 24011), (1131, 18470), (1847, 11310), (1885, 11082), (2262, 9235), (3694, 5655), (3770, 5541)]