12815775

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 26823680

約数和(自身を除く): 14007905

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 79, 103, 105, 175, 225, 237, 309, 315, 395, 515, 525, 553, 711, 721, 927, 1185, 1545, 1575, 1659, 1975, 2163, 2575, 2765, 3555, 3605, 4635, 4977, 5925, 6489, 7725, 8137, 8295, 10815, 13825, 17775, 18025, 23175, 24411, 24885, 32445, 40685, 41475, 54075, 56959, 73233, 122055, 124425, 162225, 170877, 203425, 284795, 366165, 512631, 610275, 854385, 1423975, 1830825, 2563155, 4271925, 12815775]

約数ペア:

[(1, 12815775), (3, 4271925), (5, 2563155), (7, 1830825), (9, 1423975), (15, 854385), (21, 610275), (25, 512631), (35, 366165), (45, 284795), (63, 203425), (75, 170877), (79, 162225), (103, 124425), (105, 122055), (175, 73233), (225, 56959), (237, 54075), (309, 41475), (315, 40685), (395, 32445), (515, 24885), (525, 24411), (553, 23175), (711, 18025), (721, 17775), (927, 13825), (1185, 10815), (1545, 8295), (1575, 8137), (1659, 7725), (1975, 6489), (2163, 5925), (2575, 4977), (2765, 4635), (3555, 3605)]