40120960

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:210

約数の個数: 128

約数和(自身を含む): 107956800

約数和(自身を除く): 67835840

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, 278, 320, 328, 352, 410, 440, 451, 556, 640, 656, 695, 704, 820, 880, 902, 1112, 1312, 1390, 1408, 1529, 1640, 1760, 1804, 2224, 2255, 2624, 2780, 3058, 3280, 3520, 3608, 4448, 4510, 5248, 5560, 5699, 6116, 6560, 7040, 7216, 7645, 8896, 9020, 11120, 11398, 12232, 13120, 14432, 15290, 17792, 18040, 22240, 22796, 24464, 26240, 28495, 28864, 30580, 36080, 44480, 45592, 48928, 56990, 57728, 61160, 62689, 72160, 88960, 91184, 97856, 113980, 122320, 125378, 144320, 182368, 195712, 227960, 244640, 250756, 288640, 313445, 364736, 455920, 489280, 501512, 626890, 729472, 911840, 978560, 1003024, 1253780, 1823680, 2006048, 2507560, 3647360, 4012096, 5015120, 8024192, 10030240, 20060480, 40120960]

約数ペア:

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