1640902880

素因数分解:

$2^5\times 5^1\times {\mathrm{631}}^1\times {\mathrm{16253}}^1$

素因数の和:16899

約数の個数: 48

約数和(自身を含む): 3883015584

約数和(自身を除く): 2242112704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 631, 1262, 2524, 3155, 5048, 6310, 10096, 12620, 16253, 20192, 25240, 32506, 50480, 65012, 81265, 100960, 130024, 162530, 260048, 325060, 520096, 650120, 1300240, 2600480, 10255643, 20511286, 41022572, 51278215, 82045144, 102556430, 164090288, 205112860, 328180576, 410225720, 820451440, 1640902880]

約数ペア:

[(1, 1640902880), (2, 820451440), (4, 410225720), (5, 328180576), (8, 205112860), (10, 164090288), (16, 102556430), (20, 82045144), (32, 51278215), (40, 41022572), (80, 20511286), (160, 10255643), (631, 2600480), (1262, 1300240), (2524, 650120), (3155, 520096), (5048, 325060), (6310, 260048), (10096, 162530), (12620, 130024), (16253, 100960), (20192, 81265), (25240, 65012), (32506, 50480)]