251010560

素因数分解:

$2^9\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1475

約数の個数: 80

約数和(自身を含む): 610755552

約数和(自身を除く): 359744992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 512, 568, 640, 710, 1136, 1280, 1381, 1420, 2272, 2560, 2762, 2840, 4544, 5524, 5680, 6905, 9088, 11048, 11360, 13810, 18176, 22096, 22720, 27620, 36352, 44192, 45440, 55240, 88384, 90880, 98051, 110480, 176768, 181760, 196102, 220960, 353536, 392204, 441920, 490255, 707072, 784408, 883840, 980510, 1568816, 1767680, 1961020, 3137632, 3535360, 3922040, 6275264, 7844080, 12550528, 15688160, 25101056, 31376320, 50202112, 62752640, 125505280, 251010560]

約数ペア:

[(1, 251010560), (2, 125505280), (4, 62752640), (5, 50202112), (8, 31376320), (10, 25101056), (16, 15688160), (20, 12550528), (32, 7844080), (40, 6275264), (64, 3922040), (71, 3535360), (80, 3137632), (128, 1961020), (142, 1767680), (160, 1568816), (256, 980510), (284, 883840), (320, 784408), (355, 707072), (512, 490255), (568, 441920), (640, 392204), (710, 353536), (1136, 220960), (1280, 196102), (1381, 181760), (1420, 176768), (2272, 110480), (2560, 98051), (2762, 90880), (2840, 88384), (4544, 55240), (5524, 45440), (5680, 44192), (6905, 36352), (9088, 27620), (11048, 22720), (11360, 22096), (13810, 18176)]