2801381680

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{493201}}^1$

素因数の和:493285

約数の個数: 40

約数和(自身を含む): 6604961184

約数和(自身を除く): 3803579504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 493201, 986402, 1972804, 2466005, 3945608, 4932010, 7891216, 9864020, 19728040, 35017271, 39456080, 70034542, 140069084, 175086355, 280138168, 350172710, 560276336, 700345420, 1400690840, 2801381680]

約数ペア:

[(1, 2801381680), (2, 1400690840), (4, 700345420), (5, 560276336), (8, 350172710), (10, 280138168), (16, 175086355), (20, 140069084), (40, 70034542), (71, 39456080), (80, 35017271), (142, 19728040), (284, 9864020), (355, 7891216), (568, 4932010), (710, 3945608), (1136, 2466005), (1420, 1972804), (2840, 986402), (5680, 493201)]