18634240

素因数分解:

$2^9\times 5^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:303

約数の個数: 80

約数和(自身を含む): 46403280

約数和(自身を除く): 27769040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 251, 256, 290, 320, 464, 502, 512, 580, 640, 928, 1004, 1160, 1255, 1280, 1856, 2008, 2320, 2510, 2560, 3712, 4016, 4640, 5020, 7279, 7424, 8032, 9280, 10040, 14558, 14848, 16064, 18560, 20080, 29116, 32128, 36395, 37120, 40160, 58232, 64256, 72790, 74240, 80320, 116464, 128512, 145580, 160640, 232928, 291160, 321280, 465856, 582320, 642560, 931712, 1164640, 1863424, 2329280, 3726848, 4658560, 9317120, 18634240]

約数ペア:

[(1, 18634240), (2, 9317120), (4, 4658560), (5, 3726848), (8, 2329280), (10, 1863424), (16, 1164640), (20, 931712), (29, 642560), (32, 582320), (40, 465856), (58, 321280), (64, 291160), (80, 232928), (116, 160640), (128, 145580), (145, 128512), (160, 116464), (232, 80320), (251, 74240), (256, 72790), (290, 64256), (320, 58232), (464, 40160), (502, 37120), (512, 36395), (580, 32128), (640, 29116), (928, 20080), (1004, 18560), (1160, 16064), (1255, 14848), (1280, 14558), (1856, 10040), (2008, 9280), (2320, 8032), (2510, 7424), (2560, 7279), (3712, 5020), (4016, 4640)]