20199785800

素因数分解:

$2^3\times 5^2\times {\mathrm{139}}^1\times {\mathrm{726611}}^1$

素因数の和:726766

約数の個数: 48

約数和(自身を含む): 47302441200

約数和(自身を除く): 27102655400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 139, 200, 278, 556, 695, 1112, 1390, 2780, 3475, 5560, 6950, 13900, 27800, 726611, 1453222, 2906444, 3633055, 5812888, 7266110, 14532220, 18165275, 29064440, 36330550, 72661100, 100998929, 145322200, 201997858, 403995716, 504994645, 807991432, 1009989290, 2019978580, 2524973225, 4039957160, 5049946450, 10099892900, 20199785800]

約数ペア:

[(1, 20199785800), (2, 10099892900), (4, 5049946450), (5, 4039957160), (8, 2524973225), (10, 2019978580), (20, 1009989290), (25, 807991432), (40, 504994645), (50, 403995716), (100, 201997858), (139, 145322200), (200, 100998929), (278, 72661100), (556, 36330550), (695, 29064440), (1112, 18165275), (1390, 14532220), (2780, 7266110), (3475, 5812888), (5560, 3633055), (6950, 2906444), (13900, 1453222), (27800, 726611)]