821903360

素因数分解:

$2^{14}\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:239

約数の個数: 120

約数和(自身を含む): 2013204480

約数和(自身を除く): 1191301120

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, 8192, 10033, 10112, 10160, 10240, 12640, 16256, 16384, 20066, 20224, 20320, 20480, 25280, 32512, 40132, 40448, 40640, 40960, 50165, 50560, 65024, 80264, 80896, 81280, 81920, 100330, 101120, 130048, 160528, 161792, 162560, 200660, 202240, 260096, 321056, 323584, 325120, 401320, 404480, 520192, 642112, 647168, 650240, 802640, 808960, 1040384, 1284224, 1294336, 1300480, 1605280, 1617920, 2080768, 2568448, 2600960, 3210560, 3235840, 5136896, 5201920, 6421120, 6471680, 10273792, 10403840, 12842240, 20547584, 25684480, 41095168, 51368960, 82190336, 102737920, 164380672, 205475840, 410951680, 821903360]

約数ペア:

[(1, 821903360), (2, 410951680), (4, 205475840), (5, 164380672), (8, 102737920), (10, 82190336), (16, 51368960), (20, 41095168), (32, 25684480), (40, 20547584), (64, 12842240), (79, 10403840), (80, 10273792), (127, 6471680), (128, 6421120), (158, 5201920), (160, 5136896), (254, 3235840), (256, 3210560), (316, 2600960), (320, 2568448), (395, 2080768), (508, 1617920), (512, 1605280), (632, 1300480), (635, 1294336), (640, 1284224), (790, 1040384), (1016, 808960), (1024, 802640), (1264, 650240), (1270, 647168), (1280, 642112), (1580, 520192), (2032, 404480), (2048, 401320), (2528, 325120), (2540, 323584), (2560, 321056), (3160, 260096), (4064, 202240), (4096, 200660), (5056, 162560), (5080, 161792), (5120, 160528), (6320, 130048), (8128, 101120), (8192, 100330), (10033, 81920), (10112, 81280), (10160, 80896), (10240, 80264), (12640, 65024), (16256, 50560), (16384, 50165), (20066, 40960), (20224, 40640), (20320, 40448), (20480, 40132), (25280, 32512)]