78589225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 122536800

約数和(自身を除く): 43947575

約数列:

[1, 5, 11, 13, 19, 25, 55, 65, 89, 95, 143, 169, 209, 247, 275, 325, 445, 475, 715, 845, 979, 1045, 1157, 1235, 1691, 1859, 2225, 2717, 3211, 3575, 4225, 4895, 5225, 5785, 6175, 8455, 9295, 12727, 13585, 15041, 16055, 18601, 21983, 24475, 28925, 35321, 42275, 46475, 63635, 67925, 75205, 80275, 93005, 109915, 165451, 176605, 241813, 285779, 318175, 376025, 465025, 549575, 827255, 883025, 1209065, 1428895, 3143569, 4136275, 6045325, 7144475, 15717845, 78589225]

約数ペア:

[(1, 78589225), (5, 15717845), (11, 7144475), (13, 6045325), (19, 4136275), (25, 3143569), (55, 1428895), (65, 1209065), (89, 883025), (95, 827255), (143, 549575), (169, 465025), (209, 376025), (247, 318175), (275, 285779), (325, 241813), (445, 176605), (475, 165451), (715, 109915), (845, 93005), (979, 80275), (1045, 75205), (1157, 67925), (1235, 63635), (1691, 46475), (1859, 42275), (2225, 35321), (2717, 28925), (3211, 24475), (3575, 21983), (4225, 18601), (4895, 16055), (5225, 15041), (5785, 13585), (6175, 12727), (8455, 9295)]