209313920

素因数分解:

$2^7\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1303}}^1$

素因数の和:1573

約数の個数: 64

約数和(自身を含む): 502770240

約数和(自身を除く): 293456320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 251, 320, 502, 640, 1004, 1255, 1303, 2008, 2510, 2606, 4016, 5020, 5212, 6515, 8032, 10040, 10424, 13030, 16064, 20080, 20848, 26060, 32128, 40160, 41696, 52120, 80320, 83392, 104240, 160640, 166784, 208480, 327053, 416960, 654106, 833920, 1308212, 1635265, 2616424, 3270530, 5232848, 6541060, 10465696, 13082120, 20931392, 26164240, 41862784, 52328480, 104656960, 209313920]

約数ペア:

[(1, 209313920), (2, 104656960), (4, 52328480), (5, 41862784), (8, 26164240), (10, 20931392), (16, 13082120), (20, 10465696), (32, 6541060), (40, 5232848), (64, 3270530), (80, 2616424), (128, 1635265), (160, 1308212), (251, 833920), (320, 654106), (502, 416960), (640, 327053), (1004, 208480), (1255, 166784), (1303, 160640), (2008, 104240), (2510, 83392), (2606, 80320), (4016, 52120), (5020, 41696), (5212, 40160), (6515, 32128), (8032, 26060), (10040, 20848), (10424, 20080), (13030, 16064)]