18763520

素因数分解:

$2^8\times 5^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:265

約数の個数: 72

約数和(自身を含む): 45695664

約数和(自身を除く): 26932144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 128, 137, 160, 214, 256, 274, 320, 428, 535, 548, 640, 685, 856, 1070, 1096, 1280, 1370, 1712, 2140, 2192, 2740, 3424, 4280, 4384, 5480, 6848, 8560, 8768, 10960, 13696, 14659, 17120, 17536, 21920, 27392, 29318, 34240, 35072, 43840, 58636, 68480, 73295, 87680, 117272, 136960, 146590, 175360, 234544, 293180, 469088, 586360, 938176, 1172720, 1876352, 2345440, 3752704, 4690880, 9381760, 18763520]

約数ペア:

[(1, 18763520), (2, 9381760), (4, 4690880), (5, 3752704), (8, 2345440), (10, 1876352), (16, 1172720), (20, 938176), (32, 586360), (40, 469088), (64, 293180), (80, 234544), (107, 175360), (128, 146590), (137, 136960), (160, 117272), (214, 87680), (256, 73295), (274, 68480), (320, 58636), (428, 43840), (535, 35072), (548, 34240), (640, 29318), (685, 27392), (856, 21920), (1070, 17536), (1096, 17120), (1280, 14659), (1370, 13696), (1712, 10960), (2140, 8768), (2192, 8560), (2740, 6848), (3424, 5480), (4280, 4384)]