80673040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2029}}^1$

素因数の和:2120

約数の個数: 80

約数和(自身を含む): 217486080

約数和(自身を除く): 136813040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2029, 2485, 2840, 3976, 4058, 4970, 5680, 7952, 8116, 9940, 10145, 14203, 16232, 19880, 20290, 28406, 32464, 39760, 40580, 56812, 71015, 81160, 113624, 142030, 144059, 162320, 227248, 284060, 288118, 568120, 576236, 720295, 1008413, 1136240, 1152472, 1440590, 2016826, 2304944, 2881180, 4033652, 5042065, 5762360, 8067304, 10084130, 11524720, 16134608, 20168260, 40336520, 80673040]

約数ペア:

[(1, 80673040), (2, 40336520), (4, 20168260), (5, 16134608), (7, 11524720), (8, 10084130), (10, 8067304), (14, 5762360), (16, 5042065), (20, 4033652), (28, 2881180), (35, 2304944), (40, 2016826), (56, 1440590), (70, 1152472), (71, 1136240), (80, 1008413), (112, 720295), (140, 576236), (142, 568120), (280, 288118), (284, 284060), (355, 227248), (497, 162320), (560, 144059), (568, 142030), (710, 113624), (994, 81160), (1136, 71015), (1420, 56812), (1988, 40580), (2029, 39760), (2485, 32464), (2840, 28406), (3976, 20290), (4058, 19880), (4970, 16232), (5680, 14203), (7952, 10145), (8116, 9940)]