81788840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41729}}^1$

素因数の和:41754

約数の個数: 48

約数和(自身を含む): 214074900

約数和(自身を除く): 132286060

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, 41729, 83458, 166916, 208645, 292103, 333832, 417290, 584206, 834580, 1168412, 1460515, 1669160, 2044721, 2336824, 2921030, 4089442, 5842060, 8178884, 10223605, 11684120, 16357768, 20447210, 40894420, 81788840]

約数ペア:

[(1, 81788840), (2, 40894420), (4, 20447210), (5, 16357768), (7, 11684120), (8, 10223605), (10, 8178884), (14, 5842060), (20, 4089442), (28, 2921030), (35, 2336824), (40, 2044721), (49, 1669160), (56, 1460515), (70, 1168412), (98, 834580), (140, 584206), (196, 417290), (245, 333832), (280, 292103), (392, 208645), (490, 166916), (980, 83458), (1960, 41729)]