28213625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 48

約数和(自身を含む): 41378688

約数和(自身を除く): 13165063

約数列:

[1, 5, 11, 17, 25, 55, 71, 85, 125, 187, 275, 289, 355, 425, 781, 935, 1207, 1375, 1445, 1775, 2125, 3179, 3905, 4675, 6035, 7225, 8875, 13277, 15895, 19525, 20519, 23375, 30175, 36125, 66385, 79475, 97625, 102595, 150875, 225709, 331925, 397375, 512975, 1128545, 1659625, 2564875, 5642725, 28213625]

約数ペア:

[(1, 28213625), (5, 5642725), (11, 2564875), (17, 1659625), (25, 1128545), (55, 512975), (71, 397375), (85, 331925), (125, 225709), (187, 150875), (275, 102595), (289, 97625), (355, 79475), (425, 66385), (781, 36125), (935, 30175), (1207, 23375), (1375, 20519), (1445, 19525), (1775, 15895), (2125, 13277), (3179, 8875), (3905, 7225), (4675, 6035)]