13439840

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4421}}^1$

素因数の和:4455

約数の個数: 48

約数和(自身を含む): 33430320

約数和(自身を除く): 19990480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 4421, 8842, 17684, 22105, 35368, 44210, 70736, 83999, 88420, 141472, 167998, 176840, 335996, 353680, 419995, 671992, 707360, 839990, 1343984, 1679980, 2687968, 3359960, 6719920, 13439840]

約数ペア:

[(1, 13439840), (2, 6719920), (4, 3359960), (5, 2687968), (8, 1679980), (10, 1343984), (16, 839990), (19, 707360), (20, 671992), (32, 419995), (38, 353680), (40, 335996), (76, 176840), (80, 167998), (95, 141472), (152, 88420), (160, 83999), (190, 70736), (304, 44210), (380, 35368), (608, 22105), (760, 17684), (1520, 8842), (3040, 4421)]