20199095475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{51407}}^1$

素因数の和:51477

約数の個数: 72

約数和(自身を含む): 37329610752

約数和(自身を除く): 17130515277

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 93, 155, 169, 195, 325, 403, 465, 507, 775, 845, 975, 1209, 2015, 2325, 2535, 4225, 5239, 6045, 10075, 12675, 15717, 26195, 30225, 51407, 78585, 130975, 154221, 257035, 392925, 668291, 771105, 1285175, 1593617, 2004873, 3341455, 3855525, 4780851, 7968085, 8687783, 10024365, 16707275, 20717021, 23904255, 26063349, 39840425, 43438915, 50121825, 62151063, 103585105, 119521275, 130316745, 217194575, 269321273, 310755315, 517925525, 651583725, 807963819, 1346606365, 1553776575, 4039819095, 6733031825, 20199095475]

約数ペア:

[(1, 20199095475), (3, 6733031825), (5, 4039819095), (13, 1553776575), (15, 1346606365), (25, 807963819), (31, 651583725), (39, 517925525), (65, 310755315), (75, 269321273), (93, 217194575), (155, 130316745), (169, 119521275), (195, 103585105), (325, 62151063), (403, 50121825), (465, 43438915), (507, 39840425), (775, 26063349), (845, 23904255), (975, 20717021), (1209, 16707275), (2015, 10024365), (2325, 8687783), (2535, 7968085), (4225, 4780851), (5239, 3855525), (6045, 3341455), (10075, 2004873), (12675, 1593617), (15717, 1285175), (26195, 771105), (30225, 668291), (51407, 392925), (78585, 257035), (130975, 154221)]