39908540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 98460432

約数和(自身を除く): 58551892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 193, 196, 211, 245, 386, 422, 490, 772, 844, 965, 980, 1055, 1351, 1477, 1930, 2110, 2702, 2954, 3860, 4220, 5404, 5908, 6755, 7385, 9457, 10339, 13510, 14770, 18914, 20678, 27020, 29540, 37828, 40723, 41356, 47285, 51695, 81446, 94570, 103390, 162892, 189140, 203615, 206780, 285061, 407230, 570122, 814460, 1140244, 1425305, 1995427, 2850610, 3990854, 5701220, 7981708, 9977135, 19954270, 39908540]

約数ペア:

[(1, 39908540), (2, 19954270), (4, 9977135), (5, 7981708), (7, 5701220), (10, 3990854), (14, 2850610), (20, 1995427), (28, 1425305), (35, 1140244), (49, 814460), (70, 570122), (98, 407230), (140, 285061), (193, 206780), (196, 203615), (211, 189140), (245, 162892), (386, 103390), (422, 94570), (490, 81446), (772, 51695), (844, 47285), (965, 41356), (980, 40723), (1055, 37828), (1351, 29540), (1477, 27020), (1930, 20678), (2110, 18914), (2702, 14770), (2954, 13510), (3860, 10339), (4220, 9457), (5404, 7385), (5908, 6755)]