140730520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7079}}^1$

素因数の和:7168

約数の個数: 64

約数和(自身を含む): 367027200

約数和(自身を除く): 226296680

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, 4970, 7079, 9940, 14158, 19880, 28316, 35395, 49553, 56632, 70790, 99106, 141580, 198212, 247765, 283160, 396424, 495530, 502609, 991060, 1005218, 1982120, 2010436, 2513045, 3518263, 4020872, 5026090, 7036526, 10052180, 14073052, 17591315, 20104360, 28146104, 35182630, 70365260, 140730520]

約数ペア:

[(1, 140730520), (2, 70365260), (4, 35182630), (5, 28146104), (7, 20104360), (8, 17591315), (10, 14073052), (14, 10052180), (20, 7036526), (28, 5026090), (35, 4020872), (40, 3518263), (56, 2513045), (70, 2010436), (71, 1982120), (140, 1005218), (142, 991060), (280, 502609), (284, 495530), (355, 396424), (497, 283160), (568, 247765), (710, 198212), (994, 141580), (1420, 99106), (1988, 70790), (2485, 56632), (2840, 49553), (3976, 35395), (4970, 28316), (7079, 19880), (9940, 14158)]