17979980

素因数分解:

$2^2\times 5^1\times {\mathrm{773}}^1\times {\mathrm{1163}}^1$

素因数の和:1945

約数の個数: 24

約数和(自身を含む): 37839312

約数和(自身を除く): 19859332

約数列:

[1, 2, 4, 5, 10, 20, 773, 1163, 1546, 2326, 3092, 3865, 4652, 5815, 7730, 11630, 15460, 23260, 898999, 1797998, 3595996, 4494995, 8989990, 17979980]

約数ペア:

[(1, 17979980), (2, 8989990), (4, 4494995), (5, 3595996), (10, 1797998), (20, 898999), (773, 23260), (1163, 15460), (1546, 11630), (2326, 7730), (3092, 5815), (3865, 4652)]