28256970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{563}}^1$

素因数の和:819

約数の個数: 64

約数和(自身を含む): 77967360

約数和(自身を除く): 49710390

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 239, 478, 563, 717, 1126, 1195, 1434, 1673, 1689, 2390, 2815, 3346, 3378, 3585, 3941, 5019, 5630, 7170, 7882, 8365, 8445, 10038, 11823, 16730, 16890, 19705, 23646, 25095, 39410, 50190, 59115, 118230, 134557, 269114, 403671, 672785, 807342, 941899, 1345570, 1883798, 2018355, 2825697, 4036710, 4709495, 5651394, 9418990, 14128485, 28256970]

約数ペア:

[(1, 28256970), (2, 14128485), (3, 9418990), (5, 5651394), (6, 4709495), (7, 4036710), (10, 2825697), (14, 2018355), (15, 1883798), (21, 1345570), (30, 941899), (35, 807342), (42, 672785), (70, 403671), (105, 269114), (210, 134557), (239, 118230), (478, 59115), (563, 50190), (717, 39410), (1126, 25095), (1195, 23646), (1434, 19705), (1673, 16890), (1689, 16730), (2390, 11823), (2815, 10038), (3346, 8445), (3378, 8365), (3585, 7882), (3941, 7170), (5019, 5630)]