205475840

素因数分解:

$2^{12}\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 104

約数和(自身を含む): 503255040

約数和(自身を除く): 297779200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 127, 128, 158, 160, 254, 256, 316, 320, 395, 508, 512, 632, 635, 640, 790, 1016, 1024, 1264, 1270, 1280, 1580, 2032, 2048, 2528, 2540, 2560, 3160, 4064, 4096, 5056, 5080, 5120, 6320, 8128, 10033, 10112, 10160, 10240, 12640, 16256, 20066, 20224, 20320, 20480, 25280, 32512, 40132, 40448, 40640, 50165, 50560, 65024, 80264, 80896, 81280, 100330, 101120, 130048, 160528, 161792, 162560, 200660, 202240, 260096, 321056, 323584, 325120, 401320, 404480, 520192, 642112, 650240, 802640, 808960, 1284224, 1300480, 1605280, 1617920, 2568448, 2600960, 3210560, 5136896, 6421120, 10273792, 12842240, 20547584, 25684480, 41095168, 51368960, 102737920, 205475840]

約数ペア:

[(1, 205475840), (2, 102737920), (4, 51368960), (5, 41095168), (8, 25684480), (10, 20547584), (16, 12842240), (20, 10273792), (32, 6421120), (40, 5136896), (64, 3210560), (79, 2600960), (80, 2568448), (127, 1617920), (128, 1605280), (158, 1300480), (160, 1284224), (254, 808960), (256, 802640), (316, 650240), (320, 642112), (395, 520192), (508, 404480), (512, 401320), (632, 325120), (635, 323584), (640, 321056), (790, 260096), (1016, 202240), (1024, 200660), (1264, 162560), (1270, 161792), (1280, 160528), (1580, 130048), (2032, 101120), (2048, 100330), (2528, 81280), (2540, 80896), (2560, 80264), (3160, 65024), (4064, 50560), (4096, 50165), (5056, 40640), (5080, 40448), (5120, 40132), (6320, 32512), (8128, 25280), (10033, 20480), (10112, 20320), (10160, 20224), (10240, 20066), (12640, 16256)]