18817520

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8111}}^1$

素因数の和:8153

約数の個数: 40

約数和(自身を含む): 45264960

約数和(自身を除く): 26447440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8111, 16222, 32444, 40555, 64888, 81110, 129776, 162220, 235219, 324440, 470438, 648880, 940876, 1176095, 1881752, 2352190, 3763504, 4704380, 9408760, 18817520]

約数ペア:

[(1, 18817520), (2, 9408760), (4, 4704380), (5, 3763504), (8, 2352190), (10, 1881752), (16, 1176095), (20, 940876), (29, 648880), (40, 470438), (58, 324440), (80, 235219), (116, 162220), (145, 129776), (232, 81110), (290, 64888), (464, 40555), (580, 32444), (1160, 16222), (2320, 8111)]