18984940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73019}}^1$

素因数の和:73041

約数の個数: 24

約数和(自身を含む): 42935760

約数和(自身を除く): 23950820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 73019, 146038, 292076, 365095, 730190, 949247, 1460380, 1898494, 3796988, 4746235, 9492470, 18984940]

約数ペア:

[(1, 18984940), (2, 9492470), (4, 4746235), (5, 3796988), (10, 1898494), (13, 1460380), (20, 949247), (26, 730190), (52, 365095), (65, 292076), (130, 146038), (260, 73019)]