1991080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{547}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 5523840

約数和(自身を除く): 3532760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 547, 728, 910, 1094, 1820, 2188, 2735, 3640, 3829, 4376, 5470, 7111, 7658, 10940, 14222, 15316, 19145, 21880, 28444, 30632, 35555, 38290, 49777, 56888, 71110, 76580, 99554, 142220, 153160, 199108, 248885, 284440, 398216, 497770, 995540, 1991080]

約数ペア:

[(1, 1991080), (2, 995540), (4, 497770), (5, 398216), (7, 284440), (8, 248885), (10, 199108), (13, 153160), (14, 142220), (20, 99554), (26, 76580), (28, 71110), (35, 56888), (40, 49777), (52, 38290), (56, 35555), (65, 30632), (70, 28444), (91, 21880), (104, 19145), (130, 15316), (140, 14222), (182, 10940), (260, 7658), (280, 7111), (364, 5470), (455, 4376), (520, 3829), (547, 3640), (728, 2735), (910, 2188), (1094, 1820)]