42820000

素因数分解:

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

素因数の和:2171

約数の個数: 60

約数和(自身を含む): 105392826

約数和(自身を除く): 62572826

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, 1000, 1250, 2000, 2141, 2500, 4000, 4282, 5000, 8564, 10000, 10705, 17128, 20000, 21410, 34256, 42820, 53525, 68512, 85640, 107050, 171280, 214100, 267625, 342560, 428200, 535250, 856400, 1070500, 1338125, 1712800, 2141000, 2676250, 4282000, 5352500, 8564000, 10705000, 21410000, 42820000]

約数ペア:

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