20199779425

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{809}}^1\times {\mathrm{2339}}^1$

素因数の和:3226

約数の個数: 48

約数和(自身を含む): 29143670400

約数和(自身を除く): 8943890975

約数列:

[1, 5, 7, 25, 35, 61, 175, 305, 427, 809, 1525, 2135, 2339, 4045, 5663, 10675, 11695, 16373, 20225, 28315, 49349, 58475, 81865, 141575, 142679, 246745, 345443, 409325, 713395, 998753, 1233725, 1727215, 1892251, 3566975, 4993765, 8636075, 9461255, 13245757, 24968825, 47306275, 66228785, 115427311, 331143925, 577136555, 807991177, 2885682775, 4039955885, 20199779425]

約数ペア:

[(1, 20199779425), (5, 4039955885), (7, 2885682775), (25, 807991177), (35, 577136555), (61, 331143925), (175, 115427311), (305, 66228785), (427, 47306275), (809, 24968825), (1525, 13245757), (2135, 9461255), (2339, 8636075), (4045, 4993765), (5663, 3566975), (10675, 1892251), (11695, 1727215), (16373, 1233725), (20225, 998753), (28315, 713395), (49349, 409325), (58475, 345443), (81865, 246745), (141575, 142679)]