399638560

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2003}}^1$

素因数の和:2090

約数の個数: 96

約数和(自身を含む): 999915840

約数和(自身を除く): 600277280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 43, 58, 80, 86, 116, 145, 160, 172, 215, 232, 290, 344, 430, 464, 580, 688, 860, 928, 1160, 1247, 1376, 1720, 2003, 2320, 2494, 3440, 4006, 4640, 4988, 6235, 6880, 8012, 9976, 10015, 12470, 16024, 19952, 20030, 24940, 32048, 39904, 40060, 49880, 58087, 64096, 80120, 86129, 99760, 116174, 160240, 172258, 199520, 232348, 290435, 320480, 344516, 430645, 464696, 580870, 689032, 861290, 929392, 1161740, 1378064, 1722580, 1858784, 2323480, 2497741, 2756128, 3445160, 4646960, 4995482, 6890320, 9293920, 9990964, 12488705, 13780640, 19981928, 24977410, 39963856, 49954820, 79927712, 99909640, 199819280, 399638560]

約数ペア:

[(1, 399638560), (2, 199819280), (4, 99909640), (5, 79927712), (8, 49954820), (10, 39963856), (16, 24977410), (20, 19981928), (29, 13780640), (32, 12488705), (40, 9990964), (43, 9293920), (58, 6890320), (80, 4995482), (86, 4646960), (116, 3445160), (145, 2756128), (160, 2497741), (172, 2323480), (215, 1858784), (232, 1722580), (290, 1378064), (344, 1161740), (430, 929392), (464, 861290), (580, 689032), (688, 580870), (860, 464696), (928, 430645), (1160, 344516), (1247, 320480), (1376, 290435), (1720, 232348), (2003, 199520), (2320, 172258), (2494, 160240), (3440, 116174), (4006, 99760), (4640, 86129), (4988, 80120), (6235, 64096), (6880, 58087), (8012, 49880), (9976, 40060), (10015, 39904), (12470, 32048), (16024, 24940), (19952, 20030)]