15717940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{311}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 39940992

約数和(自身を除く): 24223052

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 311, 361, 380, 532, 622, 665, 722, 1244, 1330, 1444, 1555, 1805, 2177, 2527, 2660, 3110, 3610, 4354, 5054, 5909, 6220, 7220, 8708, 10108, 10885, 11818, 12635, 21770, 23636, 25270, 29545, 41363, 43540, 50540, 59090, 82726, 112271, 118180, 165452, 206815, 224542, 413630, 449084, 561355, 785897, 827260, 1122710, 1571794, 2245420, 3143588, 3929485, 7858970, 15717940]

約数ペア:

[(1, 15717940), (2, 7858970), (4, 3929485), (5, 3143588), (7, 2245420), (10, 1571794), (14, 1122710), (19, 827260), (20, 785897), (28, 561355), (35, 449084), (38, 413630), (70, 224542), (76, 206815), (95, 165452), (133, 118180), (140, 112271), (190, 82726), (266, 59090), (311, 50540), (361, 43540), (380, 41363), (532, 29545), (622, 25270), (665, 23636), (722, 21770), (1244, 12635), (1330, 11818), (1444, 10885), (1555, 10108), (1805, 8708), (2177, 7220), (2527, 6220), (2660, 5909), (3110, 5054), (3610, 4354)]