18717760

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2017}}^1$

素因数の和:2063

約数の個数: 56

約数和(自身を含む): 46131480

約数和(自身を除く): 27413720

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, 2017, 2320, 4034, 4640, 8068, 9280, 10085, 16136, 20170, 32272, 40340, 58493, 64544, 80680, 116986, 129088, 161360, 233972, 292465, 322720, 467944, 584930, 645440, 935888, 1169860, 1871776, 2339720, 3743552, 4679440, 9358880, 18717760]

約数ペア:

[(1, 18717760), (2, 9358880), (4, 4679440), (5, 3743552), (8, 2339720), (10, 1871776), (16, 1169860), (20, 935888), (29, 645440), (32, 584930), (40, 467944), (58, 322720), (64, 292465), (80, 233972), (116, 161360), (145, 129088), (160, 116986), (232, 80680), (290, 64544), (320, 58493), (464, 40340), (580, 32272), (928, 20170), (1160, 16136), (1856, 10085), (2017, 9280), (2320, 8068), (4034, 4640)]