84072520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4229}}^1$

素因数の和:4318

約数の個数: 64

約数和(自身を含む): 219283200

約数和(自身を除く): 135210680

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, 2485, 2840, 3976, 4229, 4970, 8458, 9940, 16916, 19880, 21145, 29603, 33832, 42290, 59206, 84580, 118412, 148015, 169160, 236824, 296030, 300259, 592060, 600518, 1184120, 1201036, 1501295, 2101813, 2402072, 3002590, 4203626, 6005180, 8407252, 10509065, 12010360, 16814504, 21018130, 42036260, 84072520]

約数ペア:

[(1, 84072520), (2, 42036260), (4, 21018130), (5, 16814504), (7, 12010360), (8, 10509065), (10, 8407252), (14, 6005180), (20, 4203626), (28, 3002590), (35, 2402072), (40, 2101813), (56, 1501295), (70, 1201036), (71, 1184120), (140, 600518), (142, 592060), (280, 300259), (284, 296030), (355, 236824), (497, 169160), (568, 148015), (710, 118412), (994, 84580), (1420, 59206), (1988, 42290), (2485, 33832), (2840, 29603), (3976, 21145), (4229, 19880), (4970, 16916), (8458, 9940)]