78688225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1066

約数の個数: 48

約数和(自身を含む): 124742016

約数和(自身を除く): 46053791

約数列:

[1, 5, 7, 11, 25, 35, 41, 55, 77, 175, 205, 275, 287, 385, 451, 997, 1025, 1435, 1925, 2255, 3157, 4985, 6979, 7175, 10967, 11275, 15785, 24925, 34895, 40877, 54835, 76769, 78925, 174475, 204385, 274175, 286139, 383845, 449647, 1021925, 1430695, 1919225, 2248235, 3147529, 7153475, 11241175, 15737645, 78688225]

約数ペア:

[(1, 78688225), (5, 15737645), (7, 11241175), (11, 7153475), (25, 3147529), (35, 2248235), (41, 1919225), (55, 1430695), (77, 1021925), (175, 449647), (205, 383845), (275, 286139), (287, 274175), (385, 204385), (451, 174475), (997, 78925), (1025, 76769), (1435, 54835), (1925, 40877), (2255, 34895), (3157, 24925), (4985, 15785), (6979, 11275), (7175, 10967)]