129022900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{31469}}^1$

素因数の和:31524

約数の個数: 36

約数和(自身を含む): 286817580

約数和(自身を除く): 157794680

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 31469, 62938, 125876, 157345, 314690, 629380, 786725, 1290229, 1573450, 2580458, 3146900, 5160916, 6451145, 12902290, 25804580, 32255725, 64511450, 129022900]

約数ペア:

[(1, 129022900), (2, 64511450), (4, 32255725), (5, 25804580), (10, 12902290), (20, 6451145), (25, 5160916), (41, 3146900), (50, 2580458), (82, 1573450), (100, 1290229), (164, 786725), (205, 629380), (410, 314690), (820, 157345), (1025, 125876), (2050, 62938), (4100, 31469)]