39740120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1999}}^1$

素因数の和:2088

約数の個数: 64

約数和(自身を含む): 103680000

約数和(自身を除く): 63939880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 1999, 2485, 2840, 3976, 3998, 4970, 7996, 9940, 9995, 13993, 15992, 19880, 19990, 27986, 39980, 55972, 69965, 79960, 111944, 139930, 141929, 279860, 283858, 559720, 567716, 709645, 993503, 1135432, 1419290, 1987006, 2838580, 3974012, 4967515, 5677160, 7948024, 9935030, 19870060, 39740120]

約数ペア:

[(1, 39740120), (2, 19870060), (4, 9935030), (5, 7948024), (7, 5677160), (8, 4967515), (10, 3974012), (14, 2838580), (20, 1987006), (28, 1419290), (35, 1135432), (40, 993503), (56, 709645), (70, 567716), (71, 559720), (140, 283858), (142, 279860), (280, 141929), (284, 139930), (355, 111944), (497, 79960), (568, 69965), (710, 55972), (994, 39980), (1420, 27986), (1988, 19990), (1999, 19880), (2485, 15992), (2840, 13993), (3976, 9995), (3998, 9940), (4970, 7996)]