20516000

素因数分解:

$2^5\times 5^3\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 52835328

約数和(自身を除く): 32319328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 80, 92, 100, 115, 125, 160, 184, 200, 223, 230, 250, 368, 400, 446, 460, 500, 575, 736, 800, 892, 920, 1000, 1115, 1150, 1784, 1840, 2000, 2230, 2300, 2875, 3568, 3680, 4000, 4460, 4600, 5129, 5575, 5750, 7136, 8920, 9200, 10258, 11150, 11500, 17840, 18400, 20516, 22300, 23000, 25645, 27875, 35680, 41032, 44600, 46000, 51290, 55750, 82064, 89200, 92000, 102580, 111500, 128225, 164128, 178400, 205160, 223000, 256450, 410320, 446000, 512900, 641125, 820640, 892000, 1025800, 1282250, 2051600, 2564500, 4103200, 5129000, 10258000, 20516000]

約数ペア:

[(1, 20516000), (2, 10258000), (4, 5129000), (5, 4103200), (8, 2564500), (10, 2051600), (16, 1282250), (20, 1025800), (23, 892000), (25, 820640), (32, 641125), (40, 512900), (46, 446000), (50, 410320), (80, 256450), (92, 223000), (100, 205160), (115, 178400), (125, 164128), (160, 128225), (184, 111500), (200, 102580), (223, 92000), (230, 89200), (250, 82064), (368, 55750), (400, 51290), (446, 46000), (460, 44600), (500, 41032), (575, 35680), (736, 27875), (800, 25645), (892, 23000), (920, 22300), (1000, 20516), (1115, 18400), (1150, 17840), (1784, 11500), (1840, 11150), (2000, 10258), (2230, 9200), (2300, 8920), (2875, 7136), (3568, 5750), (3680, 5575), (4000, 5129), (4460, 4600)]