7912240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 21427200

約数和(自身を除く): 13514960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 199, 280, 284, 355, 398, 497, 560, 568, 710, 796, 994, 995, 1136, 1393, 1420, 1592, 1988, 1990, 2485, 2786, 2840, 3184, 3976, 3980, 4970, 5572, 5680, 6965, 7952, 7960, 9940, 11144, 13930, 14129, 15920, 19880, 22288, 27860, 28258, 39760, 55720, 56516, 70645, 98903, 111440, 113032, 141290, 197806, 226064, 282580, 395612, 494515, 565160, 791224, 989030, 1130320, 1582448, 1978060, 3956120, 7912240]

約数ペア:

[(1, 7912240), (2, 3956120), (4, 1978060), (5, 1582448), (7, 1130320), (8, 989030), (10, 791224), (14, 565160), (16, 494515), (20, 395612), (28, 282580), (35, 226064), (40, 197806), (56, 141290), (70, 113032), (71, 111440), (80, 98903), (112, 70645), (140, 56516), (142, 55720), (199, 39760), (280, 28258), (284, 27860), (355, 22288), (398, 19880), (497, 15920), (560, 14129), (568, 13930), (710, 11144), (796, 9940), (994, 7960), (995, 7952), (1136, 6965), (1393, 5680), (1420, 5572), (1592, 4970), (1988, 3980), (1990, 3976), (2485, 3184), (2786, 2840)]