20483440

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4831}}^1$

素因数の和:4897

約数の個数: 40

約数和(自身を含む): 48532608

約数和(自身を除く): 28049168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4831, 9662, 19324, 24155, 38648, 48310, 77296, 96620, 193240, 256043, 386480, 512086, 1024172, 1280215, 2048344, 2560430, 4096688, 5120860, 10241720, 20483440]

約数ペア:

[(1, 20483440), (2, 10241720), (4, 5120860), (5, 4096688), (8, 2560430), (10, 2048344), (16, 1280215), (20, 1024172), (40, 512086), (53, 386480), (80, 256043), (106, 193240), (212, 96620), (265, 77296), (424, 48310), (530, 38648), (848, 24155), (1060, 19324), (2120, 9662), (4240, 4831)]