207920500

素因数分解:

$2^2\times 5^3\times {\mathrm{389}}^1\times {\mathrm{1069}}^1$

素因数の和:1477

約数の個数: 48

約数和(自身を含む): 455691600

約数和(自身を除く): 247771100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 389, 500, 778, 1069, 1556, 1945, 2138, 3890, 4276, 5345, 7780, 9725, 10690, 19450, 21380, 26725, 38900, 48625, 53450, 97250, 106900, 133625, 194500, 267250, 415841, 534500, 831682, 1663364, 2079205, 4158410, 8316820, 10396025, 20792050, 41584100, 51980125, 103960250, 207920500]

約数ペア:

[(1, 207920500), (2, 103960250), (4, 51980125), (5, 41584100), (10, 20792050), (20, 10396025), (25, 8316820), (50, 4158410), (100, 2079205), (125, 1663364), (250, 831682), (389, 534500), (500, 415841), (778, 267250), (1069, 194500), (1556, 133625), (1945, 106900), (2138, 97250), (3890, 53450), (4276, 48625), (5345, 38900), (7780, 26725), (9725, 21380), (10690, 19450)]