3956120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 10368000

約数和(自身を除く): 6411880

約数列:

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

約数ペア:

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