85640000

素因数分解:

$2^6\times 5^4\times {\mathrm{2141}}^1$

素因数の和:2173

約数の個数: 70

約数和(自身を含む): 212458554

約数和(自身を除く): 126818554

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1600, 2000, 2141, 2500, 4000, 4282, 5000, 8000, 8564, 10000, 10705, 17128, 20000, 21410, 34256, 40000, 42820, 53525, 68512, 85640, 107050, 137024, 171280, 214100, 267625, 342560, 428200, 535250, 685120, 856400, 1070500, 1338125, 1712800, 2141000, 2676250, 3425600, 4282000, 5352500, 8564000, 10705000, 17128000, 21410000, 42820000, 85640000]

約数ペア:

[(1, 85640000), (2, 42820000), (4, 21410000), (5, 17128000), (8, 10705000), (10, 8564000), (16, 5352500), (20, 4282000), (25, 3425600), (32, 2676250), (40, 2141000), (50, 1712800), (64, 1338125), (80, 1070500), (100, 856400), (125, 685120), (160, 535250), (200, 428200), (250, 342560), (320, 267625), (400, 214100), (500, 171280), (625, 137024), (800, 107050), (1000, 85640), (1250, 68512), (1600, 53525), (2000, 42820), (2141, 40000), (2500, 34256), (4000, 21410), (4282, 20000), (5000, 17128), (8000, 10705), (8564, 10000)]