1341440

素因数分解:

$2^{11}\times 5^1\times {\mathrm{131}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 3243240

約数和(自身を除く): 1901800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 256, 262, 320, 512, 524, 640, 655, 1024, 1048, 1280, 1310, 2048, 2096, 2560, 2620, 4192, 5120, 5240, 8384, 10240, 10480, 16768, 20960, 33536, 41920, 67072, 83840, 134144, 167680, 268288, 335360, 670720, 1341440]

約数ペア:

[(1, 1341440), (2, 670720), (4, 335360), (5, 268288), (8, 167680), (10, 134144), (16, 83840), (20, 67072), (32, 41920), (40, 33536), (64, 20960), (80, 16768), (128, 10480), (131, 10240), (160, 8384), (256, 5240), (262, 5120), (320, 4192), (512, 2620), (524, 2560), (640, 2096), (655, 2048), (1024, 1310), (1048, 1280)]