210199825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 295731072

約数和(自身を除く): 85531247

約数列:

[1, 5, 11, 25, 41, 55, 103, 181, 205, 275, 451, 515, 905, 1025, 1133, 1991, 2255, 2575, 4223, 4525, 5665, 7421, 9955, 11275, 18643, 21115, 28325, 37105, 46453, 49775, 81631, 93215, 105575, 185525, 205073, 232265, 408155, 466075, 764363, 1025365, 1161325, 2040775, 3821815, 5126825, 8407993, 19109075, 42039965, 210199825]

約数ペア:

[(1, 210199825), (5, 42039965), (11, 19109075), (25, 8407993), (41, 5126825), (55, 3821815), (103, 2040775), (181, 1161325), (205, 1025365), (275, 764363), (451, 466075), (515, 408155), (905, 232265), (1025, 205073), (1133, 185525), (1991, 105575), (2255, 93215), (2575, 81631), (4223, 49775), (4525, 46453), (5665, 37105), (7421, 28325), (9955, 21115), (11275, 18643)]