20832825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{929}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 38747520

約数和(自身を除く): 17914695

約数列:

[1, 3, 5, 13, 15, 23, 25, 39, 65, 69, 75, 115, 195, 299, 325, 345, 575, 897, 929, 975, 1495, 1725, 2787, 4485, 4645, 7475, 12077, 13935, 21367, 22425, 23225, 36231, 60385, 64101, 69675, 106835, 181155, 277771, 301925, 320505, 534175, 833313, 905775, 1388855, 1602525, 4166565, 6944275, 20832825]

約数ペア:

[(1, 20832825), (3, 6944275), (5, 4166565), (13, 1602525), (15, 1388855), (23, 905775), (25, 833313), (39, 534175), (65, 320505), (69, 301925), (75, 277771), (115, 181155), (195, 106835), (299, 69675), (325, 64101), (345, 60385), (575, 36231), (897, 23225), (929, 22425), (975, 21367), (1495, 13935), (1725, 12077), (2787, 7475), (4485, 4645)]