19976050

素因数分解:

$2^1\times 5^2\times {\mathrm{67}}^2\times {\mathrm{89}}^1$

素因数の和:235

約数の個数: 36

約数和(自身を含む): 38142090

約数和(自身を除く): 18166040

約数列:

[1, 2, 5, 10, 25, 50, 67, 89, 134, 178, 335, 445, 670, 890, 1675, 2225, 3350, 4450, 4489, 5963, 8978, 11926, 22445, 29815, 44890, 59630, 112225, 149075, 224450, 298150, 399521, 799042, 1997605, 3995210, 9988025, 19976050]

約数ペア:

[(1, 19976050), (2, 9988025), (5, 3995210), (10, 1997605), (25, 799042), (50, 399521), (67, 298150), (89, 224450), (134, 149075), (178, 112225), (335, 59630), (445, 44890), (670, 29815), (890, 22445), (1675, 11926), (2225, 8978), (3350, 5963), (4450, 4489)]