19154980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73673}}^1$

素因数の和:73695

約数の個数: 24

約数和(自身を含む): 43320312

約数和(自身を除く): 24165332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 73673, 147346, 294692, 368365, 736730, 957749, 1473460, 1915498, 3830996, 4788745, 9577490, 19154980]

約数ペア:

[(1, 19154980), (2, 9577490), (4, 4788745), (5, 3830996), (10, 1915498), (13, 1473460), (20, 957749), (26, 736730), (52, 368365), (65, 294692), (130, 147346), (260, 73673)]