80101520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32299}}^1$

素因数の和:32343

約数の個数: 40

約数和(自身を含む): 192249600

約数和(自身を除く): 112148080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 32299, 64598, 129196, 161495, 258392, 322990, 516784, 645980, 1001269, 1291960, 2002538, 2583920, 4005076, 5006345, 8010152, 10012690, 16020304, 20025380, 40050760, 80101520]

約数ペア:

[(1, 80101520), (2, 40050760), (4, 20025380), (5, 16020304), (8, 10012690), (10, 8010152), (16, 5006345), (20, 4005076), (31, 2583920), (40, 2002538), (62, 1291960), (80, 1001269), (124, 645980), (155, 516784), (248, 322990), (310, 258392), (496, 161495), (620, 129196), (1240, 64598), (2480, 32299)]