20640950168

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{9461}}^1$

素因数の和:9728

約数の個数: 64

約数和(自身を含む): 41202846720

約数和(自身を除く): 20561896552

約数列:

[1, 2, 4, 8, 23, 46, 71, 92, 142, 167, 184, 284, 334, 568, 668, 1336, 1633, 3266, 3841, 6532, 7682, 9461, 11857, 13064, 15364, 18922, 23714, 30728, 37844, 47428, 75688, 94856, 217603, 272711, 435206, 545422, 671731, 870412, 1090844, 1343462, 1579987, 1740824, 2181688, 2686924, 3159974, 5373848, 6319948, 12639896, 15449813, 30899626, 36339701, 61799252, 72679402, 112179077, 123598504, 145358804, 224358154, 290717608, 448716308, 897432616, 2580118771, 5160237542, 10320475084, 20640950168]

約数ペア:

[(1, 20640950168), (2, 10320475084), (4, 5160237542), (8, 2580118771), (23, 897432616), (46, 448716308), (71, 290717608), (92, 224358154), (142, 145358804), (167, 123598504), (184, 112179077), (284, 72679402), (334, 61799252), (568, 36339701), (668, 30899626), (1336, 15449813), (1633, 12639896), (3266, 6319948), (3841, 5373848), (6532, 3159974), (7682, 2686924), (9461, 2181688), (11857, 1740824), (13064, 1579987), (15364, 1343462), (18922, 1090844), (23714, 870412), (30728, 671731), (37844, 545422), (47428, 435206), (75688, 272711), (94856, 217603)]