19205360

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{557}}^1$

素因数の和:1001

約数の個数: 40

約数和(自身を含む): 44836416

約数和(自身を除く): 25631056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 557, 862, 1114, 1724, 2155, 2228, 2785, 3448, 4310, 4456, 5570, 6896, 8620, 8912, 11140, 17240, 22280, 34480, 44560, 240067, 480134, 960268, 1200335, 1920536, 2400670, 3841072, 4801340, 9602680, 19205360]

約数ペア:

[(1, 19205360), (2, 9602680), (4, 4801340), (5, 3841072), (8, 2400670), (10, 1920536), (16, 1200335), (20, 960268), (40, 480134), (80, 240067), (431, 44560), (557, 34480), (862, 22280), (1114, 17240), (1724, 11140), (2155, 8912), (2228, 8620), (2785, 6896), (3448, 5570), (4310, 4456)]