400038800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{142871}}^1$

素因数の和:142896

約数の個数: 60

約数和(自身を含む): 1098399936

約数和(自身を除く): 698361136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 142871, 285742, 571484, 714355, 1000097, 1142968, 1428710, 2000194, 2285936, 2857420, 3571775, 4000388, 5000485, 5714840, 7143550, 8000776, 10000970, 11429680, 14287100, 16001552, 20001940, 25002425, 28574200, 40003880, 50004850, 57148400, 80007760, 100009700, 200019400, 400038800]

約数ペア:

[(1, 400038800), (2, 200019400), (4, 100009700), (5, 80007760), (7, 57148400), (8, 50004850), (10, 40003880), (14, 28574200), (16, 25002425), (20, 20001940), (25, 16001552), (28, 14287100), (35, 11429680), (40, 10000970), (50, 8000776), (56, 7143550), (70, 5714840), (80, 5000485), (100, 4000388), (112, 3571775), (140, 2857420), (175, 2285936), (200, 2000194), (280, 1428710), (350, 1142968), (400, 1000097), (560, 714355), (700, 571484), (1400, 285742), (2800, 142871)]