20662020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{461}}^1$

素因数の和:562

約数の個数: 96

約数和(自身を含む): 65197440

約数和(自身を除く): 44535420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 83, 90, 108, 135, 166, 180, 249, 270, 332, 415, 461, 498, 540, 747, 830, 922, 996, 1245, 1383, 1494, 1660, 1844, 2241, 2305, 2490, 2766, 2988, 3735, 4149, 4482, 4610, 4980, 5532, 6915, 7470, 8298, 8964, 9220, 11205, 12447, 13830, 14940, 16596, 20745, 22410, 24894, 27660, 38263, 41490, 44820, 49788, 62235, 76526, 82980, 114789, 124470, 153052, 191315, 229578, 248940, 344367, 382630, 459156, 573945, 688734, 765260, 1033101, 1147890, 1377468, 1721835, 2066202, 2295780, 3443670, 4132404, 5165505, 6887340, 10331010, 20662020]

約数ペア:

[(1, 20662020), (2, 10331010), (3, 6887340), (4, 5165505), (5, 4132404), (6, 3443670), (9, 2295780), (10, 2066202), (12, 1721835), (15, 1377468), (18, 1147890), (20, 1033101), (27, 765260), (30, 688734), (36, 573945), (45, 459156), (54, 382630), (60, 344367), (83, 248940), (90, 229578), (108, 191315), (135, 153052), (166, 124470), (180, 114789), (249, 82980), (270, 76526), (332, 62235), (415, 49788), (461, 44820), (498, 41490), (540, 38263), (747, 27660), (830, 24894), (922, 22410), (996, 20745), (1245, 16596), (1383, 14940), (1494, 13830), (1660, 12447), (1844, 11205), (2241, 9220), (2305, 8964), (2490, 8298), (2766, 7470), (2988, 6915), (3735, 5532), (4149, 4980), (4482, 4610)]