265720040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1\times {\mathrm{577}}^1$

素因数の和:1014

約数の個数: 64

約数和(自身を含む): 621118800

約数和(自身を除く): 355398760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 397, 577, 580, 794, 1154, 1160, 1588, 1985, 2308, 2885, 3176, 3970, 4616, 5770, 7940, 11513, 11540, 15880, 16733, 23026, 23080, 33466, 46052, 57565, 66932, 83665, 92104, 115130, 133864, 167330, 229069, 230260, 334660, 458138, 460520, 669320, 916276, 1145345, 1832552, 2290690, 4581380, 6643001, 9162760, 13286002, 26572004, 33215005, 53144008, 66430010, 132860020, 265720040]

約数ペア:

[(1, 265720040), (2, 132860020), (4, 66430010), (5, 53144008), (8, 33215005), (10, 26572004), (20, 13286002), (29, 9162760), (40, 6643001), (58, 4581380), (116, 2290690), (145, 1832552), (232, 1145345), (290, 916276), (397, 669320), (577, 460520), (580, 458138), (794, 334660), (1154, 230260), (1160, 229069), (1588, 167330), (1985, 133864), (2308, 115130), (2885, 92104), (3176, 83665), (3970, 66932), (4616, 57565), (5770, 46052), (7940, 33466), (11513, 23080), (11540, 23026), (15880, 16733)]