80702920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1759}}^1$

素因数の和:1838

約数の個数: 64

約数和(自身を含む): 192614400

約数和(自身を除く): 111911480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1480, 1759, 2294, 3518, 4588, 5735, 7036, 8795, 9176, 11470, 14072, 17590, 22940, 35180, 45880, 54529, 65083, 70360, 109058, 130166, 218116, 260332, 272645, 325415, 436232, 520664, 545290, 650830, 1090580, 1301660, 2017573, 2181160, 2603320, 4035146, 8070292, 10087865, 16140584, 20175730, 40351460, 80702920]

約数ペア:

[(1, 80702920), (2, 40351460), (4, 20175730), (5, 16140584), (8, 10087865), (10, 8070292), (20, 4035146), (31, 2603320), (37, 2181160), (40, 2017573), (62, 1301660), (74, 1090580), (124, 650830), (148, 545290), (155, 520664), (185, 436232), (248, 325415), (296, 272645), (310, 260332), (370, 218116), (620, 130166), (740, 109058), (1147, 70360), (1240, 65083), (1480, 54529), (1759, 45880), (2294, 35180), (3518, 22940), (4588, 17590), (5735, 14072), (7036, 11470), (8795, 9176)]