850978400

素因数分解:

$2^5\times 5^2\times {\mathrm{257}}^1\times {\mathrm{4139}}^1$

素因数の和:4416

約数の個数: 72

約数和(自身を含む): 2086038360

約数和(自身を除く): 1235059960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 257, 400, 514, 800, 1028, 1285, 2056, 2570, 4112, 4139, 5140, 6425, 8224, 8278, 10280, 12850, 16556, 20560, 20695, 25700, 33112, 41120, 41390, 51400, 66224, 82780, 102800, 103475, 132448, 165560, 205600, 206950, 331120, 413900, 662240, 827800, 1063723, 1655600, 2127446, 3311200, 4254892, 5318615, 8509784, 10637230, 17019568, 21274460, 26593075, 34039136, 42548920, 53186150, 85097840, 106372300, 170195680, 212744600, 425489200, 850978400]

約数ペア:

[(1, 850978400), (2, 425489200), (4, 212744600), (5, 170195680), (8, 106372300), (10, 85097840), (16, 53186150), (20, 42548920), (25, 34039136), (32, 26593075), (40, 21274460), (50, 17019568), (80, 10637230), (100, 8509784), (160, 5318615), (200, 4254892), (257, 3311200), (400, 2127446), (514, 1655600), (800, 1063723), (1028, 827800), (1285, 662240), (2056, 413900), (2570, 331120), (4112, 206950), (4139, 205600), (5140, 165560), (6425, 132448), (8224, 103475), (8278, 102800), (10280, 82780), (12850, 66224), (16556, 51400), (20560, 41390), (20695, 41120), (25700, 33112)]