51270165

素因数分解:

$3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1783}}^1$

素因数の和:1871

約数の個数: 40

約数和(自身を含む): 93253248

約数和(自身を除く): 41983083

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 135, 213, 355, 405, 639, 1065, 1783, 1917, 3195, 5349, 5751, 8915, 9585, 16047, 26745, 28755, 48141, 80235, 126593, 144423, 240705, 379779, 632965, 722115, 1139337, 1898895, 3418011, 5696685, 10254033, 17090055, 51270165]

約数ペア:

[(1, 51270165), (3, 17090055), (5, 10254033), (9, 5696685), (15, 3418011), (27, 1898895), (45, 1139337), (71, 722115), (81, 632965), (135, 379779), (213, 240705), (355, 144423), (405, 126593), (639, 80235), (1065, 48141), (1783, 28755), (1917, 26745), (3195, 16047), (5349, 9585), (5751, 8915)]