80241920

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 144

約数和(自身を含む): 216336960

約数和(自身を除く): 136095040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 110, 128, 139, 160, 164, 176, 205, 220, 256, 278, 320, 328, 352, 410, 440, 451, 556, 640, 656, 695, 704, 820, 880, 902, 1112, 1280, 1312, 1390, 1408, 1529, 1640, 1760, 1804, 2224, 2255, 2624, 2780, 2816, 3058, 3280, 3520, 3608, 4448, 4510, 5248, 5560, 5699, 6116, 6560, 7040, 7216, 7645, 8896, 9020, 10496, 11120, 11398, 12232, 13120, 14080, 14432, 15290, 17792, 18040, 22240, 22796, 24464, 26240, 28495, 28864, 30580, 35584, 36080, 44480, 45592, 48928, 52480, 56990, 57728, 61160, 62689, 72160, 88960, 91184, 97856, 113980, 115456, 122320, 125378, 144320, 177920, 182368, 195712, 227960, 244640, 250756, 288640, 313445, 364736, 391424, 455920, 489280, 501512, 577280, 626890, 729472, 911840, 978560, 1003024, 1253780, 1458944, 1823680, 1957120, 2006048, 2507560, 3647360, 4012096, 5015120, 7294720, 8024192, 10030240, 16048384, 20060480, 40120960, 80241920]

約数ペア:

[(1, 80241920), (2, 40120960), (4, 20060480), (5, 16048384), (8, 10030240), (10, 8024192), (11, 7294720), (16, 5015120), (20, 4012096), (22, 3647360), (32, 2507560), (40, 2006048), (41, 1957120), (44, 1823680), (55, 1458944), (64, 1253780), (80, 1003024), (82, 978560), (88, 911840), (110, 729472), (128, 626890), (139, 577280), (160, 501512), (164, 489280), (176, 455920), (205, 391424), (220, 364736), (256, 313445), (278, 288640), (320, 250756), (328, 244640), (352, 227960), (410, 195712), (440, 182368), (451, 177920), (556, 144320), (640, 125378), (656, 122320), (695, 115456), (704, 113980), (820, 97856), (880, 91184), (902, 88960), (1112, 72160), (1280, 62689), (1312, 61160), (1390, 57728), (1408, 56990), (1529, 52480), (1640, 48928), (1760, 45592), (1804, 44480), (2224, 36080), (2255, 35584), (2624, 30580), (2780, 28864), (2816, 28495), (3058, 26240), (3280, 24464), (3520, 22796), (3608, 22240), (4448, 18040), (4510, 17792), (5248, 15290), (5560, 14432), (5699, 14080), (6116, 13120), (6560, 12232), (7040, 11398), (7216, 11120), (7645, 10496), (8896, 9020)]