20128911976

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^2\times {\mathrm{563}}^1$

素因数の和:755

約数の個数: 96

約数和(自身を含む): 40497478560

約数和(自身を除く): 20368566584

約数列:

[1, 2, 4, 8, 37, 43, 53, 74, 86, 106, 148, 172, 212, 296, 344, 424, 563, 1126, 1591, 1961, 2252, 2279, 2809, 3182, 3922, 4504, 4558, 5618, 6364, 7844, 9116, 11236, 12728, 15688, 18232, 20831, 22472, 24209, 29839, 41662, 48418, 59678, 83324, 84323, 96836, 103933, 119356, 120787, 166648, 168646, 193672, 207866, 238712, 241574, 337292, 415732, 483148, 674584, 831464, 895733, 966296, 1104043, 1283077, 1581467, 1791466, 2208086, 2566154, 3162934, 3582932, 4416172, 4469119, 5132308, 6325868, 7165864, 8832344, 8938238, 10264616, 12651736, 17876476, 35752952, 47473849, 58514279, 68003081, 94947698, 117028558, 136006162, 189895396, 234057116, 272012324, 379790792, 468114232, 544024648, 2516113997, 5032227994, 10064455988, 20128911976]

約数ペア:

[(1, 20128911976), (2, 10064455988), (4, 5032227994), (8, 2516113997), (37, 544024648), (43, 468114232), (53, 379790792), (74, 272012324), (86, 234057116), (106, 189895396), (148, 136006162), (172, 117028558), (212, 94947698), (296, 68003081), (344, 58514279), (424, 47473849), (563, 35752952), (1126, 17876476), (1591, 12651736), (1961, 10264616), (2252, 8938238), (2279, 8832344), (2809, 7165864), (3182, 6325868), (3922, 5132308), (4504, 4469119), (4558, 4416172), (5618, 3582932), (6364, 3162934), (7844, 2566154), (9116, 2208086), (11236, 1791466), (12728, 1581467), (15688, 1283077), (18232, 1104043), (20831, 966296), (22472, 895733), (24209, 831464), (29839, 674584), (41662, 483148), (48418, 415732), (59678, 337292), (83324, 241574), (84323, 238712), (96836, 207866), (103933, 193672), (119356, 168646), (120787, 166648)]