28991625

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 54862080

約数和(自身を除く): 25870455

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 125, 195, 247, 285, 313, 325, 375, 475, 741, 939, 975, 1235, 1425, 1565, 1625, 2375, 3705, 4069, 4695, 4875, 5947, 6175, 7125, 7825, 12207, 17841, 18525, 20345, 23475, 29735, 30875, 39125, 61035, 77311, 89205, 92625, 101725, 117375, 148675, 231933, 305175, 386555, 446025, 508625, 743375, 1159665, 1525875, 1932775, 2230125, 5798325, 9663875, 28991625]

約数ペア:

[(1, 28991625), (3, 9663875), (5, 5798325), (13, 2230125), (15, 1932775), (19, 1525875), (25, 1159665), (39, 743375), (57, 508625), (65, 446025), (75, 386555), (95, 305175), (125, 231933), (195, 148675), (247, 117375), (285, 101725), (313, 92625), (325, 89205), (375, 77311), (475, 61035), (741, 39125), (939, 30875), (975, 29735), (1235, 23475), (1425, 20345), (1565, 18525), (1625, 17841), (2375, 12207), (3705, 7825), (4069, 7125), (4695, 6175), (4875, 5947)]