19934840

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6827}}^1$

素因数の和:6911

約数の個数: 32

約数和(自身を含む): 45474480

約数和(自身を除く): 25539640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6827, 13654, 27308, 34135, 54616, 68270, 136540, 273080, 498371, 996742, 1993484, 2491855, 3986968, 4983710, 9967420, 19934840]

約数ペア:

[(1, 19934840), (2, 9967420), (4, 4983710), (5, 3986968), (8, 2491855), (10, 1993484), (20, 996742), (40, 498371), (73, 273080), (146, 136540), (292, 68270), (365, 54616), (584, 34135), (730, 27308), (1460, 13654), (2920, 6827)]