208950015

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1\times {\mathrm{953}}^1$

素因数の和:1319

約数の個数: 32

約数和(自身を含む): 342890496

約数和(自身を除く): 133940481

約数列:

[1, 3, 5, 15, 47, 141, 235, 311, 705, 933, 953, 1555, 2859, 4665, 4765, 14295, 14617, 43851, 44791, 73085, 134373, 219255, 223955, 296383, 671865, 889149, 1481915, 4445745, 13930001, 41790003, 69650005, 208950015]

約数ペア:

[(1, 208950015), (3, 69650005), (5, 41790003), (15, 13930001), (47, 4445745), (141, 1481915), (235, 889149), (311, 671865), (705, 296383), (933, 223955), (953, 219255), (1555, 134373), (2859, 73085), (4665, 44791), (4765, 43851), (14295, 14617)]