161991800

素因数分解:

$2^3\times 5^2\times {\mathrm{269}}^1\times {\mathrm{3011}}^1$

素因数の和:3296

約数の個数: 48

約数和(自身を含む): 378156600

約数和(自身を除く): 216164800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 269, 538, 1076, 1345, 2152, 2690, 3011, 5380, 6022, 6725, 10760, 12044, 13450, 15055, 24088, 26900, 30110, 53800, 60220, 75275, 120440, 150550, 301100, 602200, 809959, 1619918, 3239836, 4049795, 6479672, 8099590, 16199180, 20248975, 32398360, 40497950, 80995900, 161991800]

約数ペア:

[(1, 161991800), (2, 80995900), (4, 40497950), (5, 32398360), (8, 20248975), (10, 16199180), (20, 8099590), (25, 6479672), (40, 4049795), (50, 3239836), (100, 1619918), (200, 809959), (269, 602200), (538, 301100), (1076, 150550), (1345, 120440), (2152, 75275), (2690, 60220), (3011, 53800), (5380, 30110), (6022, 26900), (6725, 24088), (10760, 15055), (12044, 13450)]