80397560

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28309}}^1$

素因数の和:28391

約数の個数: 32

約数和(自身を含む): 183448800

約数和(自身を除く): 103051240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 28309, 56618, 113236, 141545, 226472, 283090, 566180, 1132360, 2009939, 4019878, 8039756, 10049695, 16079512, 20099390, 40198780, 80397560]

約数ペア:

[(1, 80397560), (2, 40198780), (4, 20099390), (5, 16079512), (8, 10049695), (10, 8039756), (20, 4019878), (40, 2009939), (71, 1132360), (142, 566180), (284, 283090), (355, 226472), (568, 141545), (710, 113236), (1420, 56618), (2840, 28309)]