20947910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{827}}^1$

素因数の和:1000

約数の個数: 32

約数和(自身を含む): 40240800

約数和(自身を除く): 19292890

約数列:

[1, 2, 5, 10, 17, 34, 85, 149, 170, 298, 745, 827, 1490, 1654, 2533, 4135, 5066, 8270, 12665, 14059, 25330, 28118, 70295, 123223, 140590, 246446, 616115, 1232230, 2094791, 4189582, 10473955, 20947910]

約数ペア:

[(1, 20947910), (2, 10473955), (5, 4189582), (10, 2094791), (17, 1232230), (34, 616115), (85, 246446), (149, 140590), (170, 123223), (298, 70295), (745, 28118), (827, 25330), (1490, 14059), (1654, 12665), (2533, 8270), (4135, 5066)]