20490690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2003}}^1$

素因数の和:2055

約数の個数: 64

約数和(自身を含む): 55406592

約数和(自身を除く): 34915902

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 31, 33, 55, 62, 66, 93, 110, 155, 165, 186, 310, 330, 341, 465, 682, 930, 1023, 1705, 2003, 2046, 3410, 4006, 5115, 6009, 10015, 10230, 12018, 20030, 22033, 30045, 44066, 60090, 62093, 66099, 110165, 124186, 132198, 186279, 220330, 310465, 330495, 372558, 620930, 660990, 683023, 931395, 1366046, 1862790, 2049069, 3415115, 4098138, 6830230, 10245345, 20490690]

約数ペア:

[(1, 20490690), (2, 10245345), (3, 6830230), (5, 4098138), (6, 3415115), (10, 2049069), (11, 1862790), (15, 1366046), (22, 931395), (30, 683023), (31, 660990), (33, 620930), (55, 372558), (62, 330495), (66, 310465), (93, 220330), (110, 186279), (155, 132198), (165, 124186), (186, 110165), (310, 66099), (330, 62093), (341, 60090), (465, 44066), (682, 30045), (930, 22033), (1023, 20030), (1705, 12018), (2003, 10230), (2046, 10015), (3410, 6009), (4006, 5115)]