40642000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{2903}}^1$

素因数の和:2933

約数の個数: 80

約数和(自身を含む): 112349952

約数和(自身を除く): 71707952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 700, 875, 1000, 1400, 1750, 2000, 2800, 2903, 3500, 5806, 7000, 11612, 14000, 14515, 20321, 23224, 29030, 40642, 46448, 58060, 72575, 81284, 101605, 116120, 145150, 162568, 203210, 232240, 290300, 325136, 362875, 406420, 508025, 580600, 725750, 812840, 1016050, 1161200, 1451500, 1625680, 2032100, 2540125, 2903000, 4064200, 5080250, 5806000, 8128400, 10160500, 20321000, 40642000]

約数ペア:

[(1, 40642000), (2, 20321000), (4, 10160500), (5, 8128400), (7, 5806000), (8, 5080250), (10, 4064200), (14, 2903000), (16, 2540125), (20, 2032100), (25, 1625680), (28, 1451500), (35, 1161200), (40, 1016050), (50, 812840), (56, 725750), (70, 580600), (80, 508025), (100, 406420), (112, 362875), (125, 325136), (140, 290300), (175, 232240), (200, 203210), (250, 162568), (280, 145150), (350, 116120), (400, 101605), (500, 81284), (560, 72575), (700, 58060), (875, 46448), (1000, 40642), (1400, 29030), (1750, 23224), (2000, 20321), (2800, 14515), (2903, 14000), (3500, 11612), (5806, 7000)]