287207680

素因数分解:

$2^8\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1297}}^1$

素因数の和:1491

約数の個数: 72

約数和(自身を含む): 692462232

約数和(自身を除く): 405254552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 173, 256, 320, 346, 640, 692, 865, 1280, 1297, 1384, 1730, 2594, 2768, 3460, 5188, 5536, 6485, 6920, 10376, 11072, 12970, 13840, 20752, 22144, 25940, 27680, 41504, 44288, 51880, 55360, 83008, 103760, 110720, 166016, 207520, 221440, 224381, 332032, 415040, 448762, 830080, 897524, 1121905, 1660160, 1795048, 2243810, 3590096, 4487620, 7180192, 8975240, 14360384, 17950480, 28720768, 35900960, 57441536, 71801920, 143603840, 287207680]

約数ペア:

[(1, 287207680), (2, 143603840), (4, 71801920), (5, 57441536), (8, 35900960), (10, 28720768), (16, 17950480), (20, 14360384), (32, 8975240), (40, 7180192), (64, 4487620), (80, 3590096), (128, 2243810), (160, 1795048), (173, 1660160), (256, 1121905), (320, 897524), (346, 830080), (640, 448762), (692, 415040), (865, 332032), (1280, 224381), (1297, 221440), (1384, 207520), (1730, 166016), (2594, 110720), (2768, 103760), (3460, 83008), (5188, 55360), (5536, 51880), (6485, 44288), (6920, 41504), (10376, 27680), (11072, 25940), (12970, 22144), (13840, 20752)]