28407915

素因数分解:

$3^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 51787008

約数和(自身を除く): 23379093

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 103, 135, 227, 243, 309, 405, 515, 681, 927, 1135, 1215, 1545, 2043, 2781, 3405, 4635, 6129, 8343, 10215, 13905, 18387, 23381, 25029, 30645, 41715, 55161, 70143, 91935, 116905, 125145, 210429, 275805, 350715, 631287, 1052145, 1893861, 3156435, 5681583, 9469305, 28407915]

約数ペア:

[(1, 28407915), (3, 9469305), (5, 5681583), (9, 3156435), (15, 1893861), (27, 1052145), (45, 631287), (81, 350715), (103, 275805), (135, 210429), (227, 125145), (243, 116905), (309, 91935), (405, 70143), (515, 55161), (681, 41715), (927, 30645), (1135, 25029), (1215, 23381), (1545, 18387), (2043, 13905), (2781, 10215), (3405, 8343), (4635, 6129)]