18587840

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2003}}^1$

素因数の和:2049

約数の個数: 56

約数和(自身を含む): 45811440

約数和(自身を除く): 27223600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 145, 160, 232, 290, 320, 464, 580, 928, 1160, 1856, 2003, 2320, 4006, 4640, 8012, 9280, 10015, 16024, 20030, 32048, 40060, 58087, 64096, 80120, 116174, 128192, 160240, 232348, 290435, 320480, 464696, 580870, 640960, 929392, 1161740, 1858784, 2323480, 3717568, 4646960, 9293920, 18587840]

約数ペア:

[(1, 18587840), (2, 9293920), (4, 4646960), (5, 3717568), (8, 2323480), (10, 1858784), (16, 1161740), (20, 929392), (29, 640960), (32, 580870), (40, 464696), (58, 320480), (64, 290435), (80, 232348), (116, 160240), (145, 128192), (160, 116174), (232, 80120), (290, 64096), (320, 58087), (464, 40060), (580, 32048), (928, 20030), (1160, 16024), (1856, 10015), (2003, 9280), (2320, 8012), (4006, 4640)]