49968640

素因数分解:

$2^9\times 5^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:303

約数の個数: 80

約数和(自身を含む): 121532400

約数和(自身を除く): 71563760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 149, 160, 256, 262, 298, 320, 512, 524, 596, 640, 655, 745, 1048, 1192, 1280, 1310, 1490, 2096, 2384, 2560, 2620, 2980, 4192, 4768, 5240, 5960, 8384, 9536, 10480, 11920, 16768, 19072, 19519, 20960, 23840, 33536, 38144, 39038, 41920, 47680, 67072, 76288, 78076, 83840, 95360, 97595, 156152, 167680, 190720, 195190, 312304, 335360, 381440, 390380, 624608, 780760, 1249216, 1561520, 2498432, 3123040, 4996864, 6246080, 9993728, 12492160, 24984320, 49968640]

約数ペア:

[(1, 49968640), (2, 24984320), (4, 12492160), (5, 9993728), (8, 6246080), (10, 4996864), (16, 3123040), (20, 2498432), (32, 1561520), (40, 1249216), (64, 780760), (80, 624608), (128, 390380), (131, 381440), (149, 335360), (160, 312304), (256, 195190), (262, 190720), (298, 167680), (320, 156152), (512, 97595), (524, 95360), (596, 83840), (640, 78076), (655, 76288), (745, 67072), (1048, 47680), (1192, 41920), (1280, 39038), (1310, 38144), (1490, 33536), (2096, 23840), (2384, 20960), (2560, 19519), (2620, 19072), (2980, 16768), (4192, 11920), (4768, 10480), (5240, 9536), (5960, 8384)]