18861080

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9623}}^1$

素因数の和:9648

約数の個数: 48

約数和(自身を含む): 49371120

約数和(自身を除く): 30510040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9623, 19246, 38492, 48115, 67361, 76984, 96230, 134722, 192460, 269444, 336805, 384920, 471527, 538888, 673610, 943054, 1347220, 1886108, 2357635, 2694440, 3772216, 4715270, 9430540, 18861080]

約数ペア:

[(1, 18861080), (2, 9430540), (4, 4715270), (5, 3772216), (7, 2694440), (8, 2357635), (10, 1886108), (14, 1347220), (20, 943054), (28, 673610), (35, 538888), (40, 471527), (49, 384920), (56, 336805), (70, 269444), (98, 192460), (140, 134722), (196, 96230), (245, 76984), (280, 67361), (392, 48115), (490, 38492), (980, 19246), (1960, 9623)]