2819120

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:413

約数の個数: 40

約数和(自身を含む): 6629040

約数和(自身を除く): 3809920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 269, 524, 538, 655, 1048, 1076, 1310, 1345, 2096, 2152, 2620, 2690, 4304, 5240, 5380, 10480, 10760, 21520, 35239, 70478, 140956, 176195, 281912, 352390, 563824, 704780, 1409560, 2819120]

約数ペア:

[(1, 2819120), (2, 1409560), (4, 704780), (5, 563824), (8, 352390), (10, 281912), (16, 176195), (20, 140956), (40, 70478), (80, 35239), (131, 21520), (262, 10760), (269, 10480), (524, 5380), (538, 5240), (655, 4304), (1048, 2690), (1076, 2620), (1310, 2152), (1345, 2096)]