83900000

素因数分解:

$2^5\times 5^5\times {\mathrm{839}}^1$

素因数の和:874

約数の個数: 72

約数和(自身を含む): 206705520

約数和(自身を除く): 122805520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 839, 1000, 1250, 1678, 2000, 2500, 3125, 3356, 4000, 4195, 5000, 6250, 6712, 8390, 10000, 12500, 13424, 16780, 20000, 20975, 25000, 26848, 33560, 41950, 50000, 67120, 83900, 100000, 104875, 134240, 167800, 209750, 335600, 419500, 524375, 671200, 839000, 1048750, 1678000, 2097500, 2621875, 3356000, 4195000, 5243750, 8390000, 10487500, 16780000, 20975000, 41950000, 83900000]

約数ペア:

[(1, 83900000), (2, 41950000), (4, 20975000), (5, 16780000), (8, 10487500), (10, 8390000), (16, 5243750), (20, 4195000), (25, 3356000), (32, 2621875), (40, 2097500), (50, 1678000), (80, 1048750), (100, 839000), (125, 671200), (160, 524375), (200, 419500), (250, 335600), (400, 209750), (500, 167800), (625, 134240), (800, 104875), (839, 100000), (1000, 83900), (1250, 67120), (1678, 50000), (2000, 41950), (2500, 33560), (3125, 26848), (3356, 25000), (4000, 20975), (4195, 20000), (5000, 16780), (6250, 13424), (6712, 12500), (8390, 10000)]