20029660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1811}}^1$

素因数の和:1906

約数の個数: 48

約数和(自身を含む): 48706560

約数和(自身を除く): 28676900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 1811, 2212, 2765, 3622, 5530, 7244, 9055, 11060, 12677, 18110, 25354, 36220, 50708, 63385, 126770, 143069, 253540, 286138, 572276, 715345, 1001483, 1430690, 2002966, 2861380, 4005932, 5007415, 10014830, 20029660]

約数ペア:

[(1, 20029660), (2, 10014830), (4, 5007415), (5, 4005932), (7, 2861380), (10, 2002966), (14, 1430690), (20, 1001483), (28, 715345), (35, 572276), (70, 286138), (79, 253540), (140, 143069), (158, 126770), (316, 63385), (395, 50708), (553, 36220), (790, 25354), (1106, 18110), (1580, 12677), (1811, 11060), (2212, 9055), (2765, 7244), (3622, 5530)]