8447725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 13124160

約数和(自身を除く): 4676435

約数列:

[1, 5, 11, 13, 17, 25, 55, 65, 85, 139, 143, 187, 221, 275, 325, 425, 695, 715, 935, 1105, 1529, 1807, 2363, 2431, 3475, 3575, 4675, 5525, 7645, 9035, 11815, 12155, 19877, 25993, 30719, 38225, 45175, 59075, 60775, 99385, 129965, 153595, 337909, 496925, 649825, 767975, 1689545, 8447725]

約数ペア:

[(1, 8447725), (5, 1689545), (11, 767975), (13, 649825), (17, 496925), (25, 337909), (55, 153595), (65, 129965), (85, 99385), (139, 60775), (143, 59075), (187, 45175), (221, 38225), (275, 30719), (325, 25993), (425, 19877), (695, 12155), (715, 11815), (935, 9035), (1105, 7645), (1529, 5525), (1807, 4675), (2363, 3575), (2431, 3475)]