19407700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{14929}}^1$

素因数の和:14956

約数の個数: 36

約数和(自身を含む): 45357340

約数和(自身を除く): 25949640

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 14929, 29858, 59716, 74645, 149290, 194077, 298580, 373225, 388154, 746450, 776308, 970385, 1492900, 1940770, 3881540, 4851925, 9703850, 19407700]

約数ペア:

[(1, 19407700), (2, 9703850), (4, 4851925), (5, 3881540), (10, 1940770), (13, 1492900), (20, 970385), (25, 776308), (26, 746450), (50, 388154), (52, 373225), (65, 298580), (100, 194077), (130, 149290), (260, 74645), (325, 59716), (650, 29858), (1300, 14929)]