128492960

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11311}}^1$

素因数の和:11397

約数の個数: 48

約数和(自身を含む): 307867392

約数和(自身を除く): 179374432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11311, 11360, 22622, 45244, 56555, 90488, 113110, 180976, 226220, 361952, 452440, 803081, 904880, 1606162, 1809760, 3212324, 4015405, 6424648, 8030810, 12849296, 16061620, 25698592, 32123240, 64246480, 128492960]

約数ペア:

[(1, 128492960), (2, 64246480), (4, 32123240), (5, 25698592), (8, 16061620), (10, 12849296), (16, 8030810), (20, 6424648), (32, 4015405), (40, 3212324), (71, 1809760), (80, 1606162), (142, 904880), (160, 803081), (284, 452440), (355, 361952), (568, 226220), (710, 180976), (1136, 113110), (1420, 90488), (2272, 56555), (2840, 45244), (5680, 22622), (11311, 11360)]