158768360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2099}}^1$

素因数の和:2202

約数の個数: 64

約数和(自身を含む): 374976000

約数和(自身を除く): 216207640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1220, 1240, 1891, 2099, 2440, 3782, 4198, 7564, 8396, 9455, 10495, 15128, 16792, 18910, 20990, 37820, 41980, 65069, 75640, 83960, 128039, 130138, 256078, 260276, 325345, 512156, 520552, 640195, 650690, 1024312, 1280390, 1301380, 2560780, 2602760, 3969209, 5121560, 7938418, 15876836, 19846045, 31753672, 39692090, 79384180, 158768360]

約数ペア:

[(1, 158768360), (2, 79384180), (4, 39692090), (5, 31753672), (8, 19846045), (10, 15876836), (20, 7938418), (31, 5121560), (40, 3969209), (61, 2602760), (62, 2560780), (122, 1301380), (124, 1280390), (155, 1024312), (244, 650690), (248, 640195), (305, 520552), (310, 512156), (488, 325345), (610, 260276), (620, 256078), (1220, 130138), (1240, 128039), (1891, 83960), (2099, 75640), (2440, 65069), (3782, 41980), (4198, 37820), (7564, 20990), (8396, 18910), (9455, 16792), (10495, 15128)]