19555520

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2657}}^1$

素因数の和:2697

約数の個数: 56

約数和(自身を含む): 48609504

約数和(自身を除く): 29053984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2657, 3680, 5314, 7360, 10628, 13285, 21256, 26570, 42512, 53140, 61111, 85024, 106280, 122222, 170048, 212560, 244444, 305555, 425120, 488888, 611110, 850240, 977776, 1222220, 1955552, 2444440, 3911104, 4888880, 9777760, 19555520]

約数ペア:

[(1, 19555520), (2, 9777760), (4, 4888880), (5, 3911104), (8, 2444440), (10, 1955552), (16, 1222220), (20, 977776), (23, 850240), (32, 611110), (40, 488888), (46, 425120), (64, 305555), (80, 244444), (92, 212560), (115, 170048), (160, 122222), (184, 106280), (230, 85024), (320, 61111), (368, 53140), (460, 42512), (736, 26570), (920, 21256), (1472, 13285), (1840, 10628), (2657, 7360), (3680, 5314)]