121479920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{349}}^1$

素因数の和:610

約数の個数: 80

約数和(自身を含む): 299460000

約数和(自身を除く): 177980080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 229, 304, 349, 380, 458, 698, 760, 916, 1145, 1396, 1520, 1745, 1832, 2290, 2792, 3490, 3664, 4351, 4580, 5584, 6631, 6980, 8702, 9160, 13262, 13960, 17404, 18320, 21755, 26524, 27920, 33155, 34808, 43510, 53048, 66310, 69616, 79921, 87020, 106096, 132620, 159842, 174040, 265240, 319684, 348080, 399605, 530480, 639368, 799210, 1278736, 1518499, 1598420, 3036998, 3196840, 6073996, 6393680, 7592495, 12147992, 15184990, 24295984, 30369980, 60739960, 121479920]

約数ペア:

[(1, 121479920), (2, 60739960), (4, 30369980), (5, 24295984), (8, 15184990), (10, 12147992), (16, 7592495), (19, 6393680), (20, 6073996), (38, 3196840), (40, 3036998), (76, 1598420), (80, 1518499), (95, 1278736), (152, 799210), (190, 639368), (229, 530480), (304, 399605), (349, 348080), (380, 319684), (458, 265240), (698, 174040), (760, 159842), (916, 132620), (1145, 106096), (1396, 87020), (1520, 79921), (1745, 69616), (1832, 66310), (2290, 53048), (2792, 43510), (3490, 34808), (3664, 33155), (4351, 27920), (4580, 26524), (5584, 21755), (6631, 18320), (6980, 17404), (8702, 13960), (9160, 13262)]