39999555

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{601}}^1$

素因数の和:661

約数の個数: 64

約数和(自身を含む): 78019200

約数和(自身を除く): 38019645

約数列:

[1, 3, 5, 9, 15, 17, 27, 29, 45, 51, 85, 87, 135, 145, 153, 255, 261, 435, 459, 493, 601, 765, 783, 1305, 1479, 1803, 2295, 2465, 3005, 3915, 4437, 5409, 7395, 9015, 10217, 13311, 16227, 17429, 22185, 27045, 30651, 51085, 52287, 66555, 81135, 87145, 91953, 153255, 156861, 261435, 275859, 296293, 459765, 470583, 784305, 888879, 1379295, 1481465, 2352915, 2666637, 4444395, 7999911, 13333185, 39999555]

約数ペア:

[(1, 39999555), (3, 13333185), (5, 7999911), (9, 4444395), (15, 2666637), (17, 2352915), (27, 1481465), (29, 1379295), (45, 888879), (51, 784305), (85, 470583), (87, 459765), (135, 296293), (145, 275859), (153, 261435), (255, 156861), (261, 153255), (435, 91953), (459, 87145), (493, 81135), (601, 66555), (765, 52287), (783, 51085), (1305, 30651), (1479, 27045), (1803, 22185), (2295, 17429), (2465, 16227), (3005, 13311), (3915, 10217), (4437, 9015), (5409, 7395)]