77153800

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{97}}^2$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 185671710

約数和(自身を除く): 108517910

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 97, 100, 164, 194, 200, 205, 328, 388, 410, 485, 776, 820, 970, 1025, 1640, 1940, 2050, 2425, 3880, 3977, 4100, 4850, 7954, 8200, 9409, 9700, 15908, 18818, 19400, 19885, 31816, 37636, 39770, 47045, 75272, 79540, 94090, 99425, 159080, 188180, 198850, 235225, 376360, 385769, 397700, 470450, 771538, 795400, 940900, 1543076, 1881800, 1928845, 3086152, 3857690, 7715380, 9644225, 15430760, 19288450, 38576900, 77153800]

約数ペア:

[(1, 77153800), (2, 38576900), (4, 19288450), (5, 15430760), (8, 9644225), (10, 7715380), (20, 3857690), (25, 3086152), (40, 1928845), (41, 1881800), (50, 1543076), (82, 940900), (97, 795400), (100, 771538), (164, 470450), (194, 397700), (200, 385769), (205, 376360), (328, 235225), (388, 198850), (410, 188180), (485, 159080), (776, 99425), (820, 94090), (970, 79540), (1025, 75272), (1640, 47045), (1940, 39770), (2050, 37636), (2425, 31816), (3880, 19885), (3977, 19400), (4100, 18818), (4850, 15908), (7954, 9700), (8200, 9409)]