20151395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 7717789

約数列:

[1, 5, 11, 31, 53, 55, 155, 223, 265, 341, 583, 1115, 1643, 1705, 2453, 2915, 6913, 8215, 11819, 12265, 18073, 34565, 59095, 76043, 90365, 130009, 366389, 380215, 650045, 1831945, 4030279, 20151395]

約数ペア:

[(1, 20151395), (5, 4030279), (11, 1831945), (31, 650045), (53, 380215), (55, 366389), (155, 130009), (223, 90365), (265, 76043), (341, 59095), (583, 34565), (1115, 18073), (1643, 12265), (1705, 11819), (2453, 8215), (2915, 6913)]