20512671140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{599}}^1\times {\mathrm{131711}}^1$

素因数の和:132332

約数の個数: 48

約数和(自身を含む): 46467993600

約数和(自身を除く): 25955322460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 599, 1198, 2396, 2995, 5990, 7787, 11980, 15574, 31148, 38935, 77870, 131711, 155740, 263422, 526844, 658555, 1317110, 1712243, 2634220, 3424486, 6848972, 8561215, 17122430, 34244860, 78894889, 157789778, 315579556, 394474445, 788948890, 1025633557, 1577897780, 2051267114, 4102534228, 5128167785, 10256335570, 20512671140]

約数ペア:

[(1, 20512671140), (2, 10256335570), (4, 5128167785), (5, 4102534228), (10, 2051267114), (13, 1577897780), (20, 1025633557), (26, 788948890), (52, 394474445), (65, 315579556), (130, 157789778), (260, 78894889), (599, 34244860), (1198, 17122430), (2396, 8561215), (2995, 6848972), (5990, 3424486), (7787, 2634220), (11980, 1712243), (15574, 1317110), (31148, 658555), (38935, 526844), (77870, 263422), (131711, 155740)]