208785280

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:708

約数の個数: 128

約数和(自身を含む): 556968960

約数和(自身を除く): 348183680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 64, 80, 88, 94, 110, 128, 160, 176, 188, 220, 235, 320, 352, 376, 440, 470, 517, 631, 640, 704, 752, 880, 940, 1034, 1262, 1408, 1504, 1760, 1880, 2068, 2524, 2585, 3008, 3155, 3520, 3760, 4136, 5048, 5170, 6016, 6310, 6941, 7040, 7520, 8272, 10096, 10340, 12620, 13882, 15040, 16544, 20192, 20680, 25240, 27764, 29657, 30080, 33088, 34705, 40384, 41360, 50480, 55528, 59314, 66176, 69410, 80768, 82720, 100960, 111056, 118628, 138820, 148285, 165440, 201920, 222112, 237256, 277640, 296570, 326227, 330880, 403840, 444224, 474512, 555280, 593140, 652454, 888448, 949024, 1110560, 1186280, 1304908, 1631135, 1898048, 2221120, 2372560, 2609816, 3262270, 3796096, 4442240, 4745120, 5219632, 6524540, 9490240, 10439264, 13049080, 18980480, 20878528, 26098160, 41757056, 52196320, 104392640, 208785280]

約数ペア:

[(1, 208785280), (2, 104392640), (4, 52196320), (5, 41757056), (8, 26098160), (10, 20878528), (11, 18980480), (16, 13049080), (20, 10439264), (22, 9490240), (32, 6524540), (40, 5219632), (44, 4745120), (47, 4442240), (55, 3796096), (64, 3262270), (80, 2609816), (88, 2372560), (94, 2221120), (110, 1898048), (128, 1631135), (160, 1304908), (176, 1186280), (188, 1110560), (220, 949024), (235, 888448), (320, 652454), (352, 593140), (376, 555280), (440, 474512), (470, 444224), (517, 403840), (631, 330880), (640, 326227), (704, 296570), (752, 277640), (880, 237256), (940, 222112), (1034, 201920), (1262, 165440), (1408, 148285), (1504, 138820), (1760, 118628), (1880, 111056), (2068, 100960), (2524, 82720), (2585, 80768), (3008, 69410), (3155, 66176), (3520, 59314), (3760, 55528), (4136, 50480), (5048, 41360), (5170, 40384), (6016, 34705), (6310, 33088), (6941, 30080), (7040, 29657), (7520, 27764), (8272, 25240), (10096, 20680), (10340, 20192), (12620, 16544), (13882, 15040)]