20175887420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{982273}}^1$

素因数の和:982374

約数の個数: 48

約数和(自身を含む): 46206168960

約数和(自身を除く): 26030281540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 5135, 10270, 20540, 982273, 1964546, 3929092, 4911365, 9822730, 12769549, 19645460, 25539098, 51078196, 63847745, 77599567, 127695490, 155199134, 255390980, 310398268, 387997835, 775995670, 1008794371, 1551991340, 2017588742, 4035177484, 5043971855, 10087943710, 20175887420]

約数ペア:

[(1, 20175887420), (2, 10087943710), (4, 5043971855), (5, 4035177484), (10, 2017588742), (13, 1551991340), (20, 1008794371), (26, 775995670), (52, 387997835), (65, 310398268), (79, 255390980), (130, 155199134), (158, 127695490), (260, 77599567), (316, 63847745), (395, 51078196), (790, 25539098), (1027, 19645460), (1580, 12769549), (2054, 9822730), (4108, 4911365), (5135, 3929092), (10270, 1964546), (20540, 982273)]