80506720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71881}}^1$

素因数の和:71903

約数の個数: 48

約数和(自身を含む): 217371168

約数和(自身を除く): 136864448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 71881, 143762, 287524, 359405, 503167, 575048, 718810, 1006334, 1150096, 1437620, 2012668, 2300192, 2515835, 2875240, 4025336, 5031670, 5750480, 8050672, 10063340, 11500960, 16101344, 20126680, 40253360, 80506720]

約数ペア:

[(1, 80506720), (2, 40253360), (4, 20126680), (5, 16101344), (7, 11500960), (8, 10063340), (10, 8050672), (14, 5750480), (16, 5031670), (20, 4025336), (28, 2875240), (32, 2515835), (35, 2300192), (40, 2012668), (56, 1437620), (70, 1150096), (80, 1006334), (112, 718810), (140, 575048), (160, 503167), (224, 359405), (280, 287524), (560, 143762), (1120, 71881)]