80178880

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3529}}^1$

素因数の和:3617

約数の個数: 56

約数和(自身を含む): 193669920

約数和(自身を除く): 113491040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 3529, 4544, 5680, 7058, 11360, 14116, 17645, 22720, 28232, 35290, 56464, 70580, 112928, 141160, 225856, 250559, 282320, 501118, 564640, 1002236, 1129280, 1252795, 2004472, 2505590, 4008944, 5011180, 8017888, 10022360, 16035776, 20044720, 40089440, 80178880]

約数ペア:

[(1, 80178880), (2, 40089440), (4, 20044720), (5, 16035776), (8, 10022360), (10, 8017888), (16, 5011180), (20, 4008944), (32, 2505590), (40, 2004472), (64, 1252795), (71, 1129280), (80, 1002236), (142, 564640), (160, 501118), (284, 282320), (320, 250559), (355, 225856), (568, 141160), (710, 112928), (1136, 70580), (1420, 56464), (2272, 35290), (2840, 28232), (3529, 22720), (4544, 17645), (5680, 14116), (7058, 11360)]