51742000

素因数分解:

$2^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{631}}^1$

素因数の和:695

約数の個数: 80

約数和(自身を含む): 128366784

約数和(自身を除く): 76624784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 125, 164, 200, 205, 250, 328, 400, 410, 500, 631, 656, 820, 1000, 1025, 1262, 1640, 2000, 2050, 2524, 3155, 3280, 4100, 5048, 5125, 6310, 8200, 10096, 10250, 12620, 15775, 16400, 20500, 25240, 25871, 31550, 41000, 50480, 51742, 63100, 78875, 82000, 103484, 126200, 129355, 157750, 206968, 252400, 258710, 315500, 413936, 517420, 631000, 646775, 1034840, 1262000, 1293550, 2069680, 2587100, 3233875, 5174200, 6467750, 10348400, 12935500, 25871000, 51742000]

約数ペア:

[(1, 51742000), (2, 25871000), (4, 12935500), (5, 10348400), (8, 6467750), (10, 5174200), (16, 3233875), (20, 2587100), (25, 2069680), (40, 1293550), (41, 1262000), (50, 1034840), (80, 646775), (82, 631000), (100, 517420), (125, 413936), (164, 315500), (200, 258710), (205, 252400), (250, 206968), (328, 157750), (400, 129355), (410, 126200), (500, 103484), (631, 82000), (656, 78875), (820, 63100), (1000, 51742), (1025, 50480), (1262, 41000), (1640, 31550), (2000, 25871), (2050, 25240), (2524, 20500), (3155, 16400), (3280, 15775), (4100, 12620), (5048, 10250), (5125, 10096), (6310, 8200)]