20911600

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{2273}}^1$

素因数の和:2314

約数の個数: 60

約数和(自身を含む): 52447536

約数和(自身を除く): 31535936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 184, 200, 230, 368, 400, 460, 575, 920, 1150, 1840, 2273, 2300, 4546, 4600, 9092, 9200, 11365, 18184, 22730, 36368, 45460, 52279, 56825, 90920, 104558, 113650, 181840, 209116, 227300, 261395, 418232, 454600, 522790, 836464, 909200, 1045580, 1306975, 2091160, 2613950, 4182320, 5227900, 10455800, 20911600]

約数ペア:

[(1, 20911600), (2, 10455800), (4, 5227900), (5, 4182320), (8, 2613950), (10, 2091160), (16, 1306975), (20, 1045580), (23, 909200), (25, 836464), (40, 522790), (46, 454600), (50, 418232), (80, 261395), (92, 227300), (100, 209116), (115, 181840), (184, 113650), (200, 104558), (230, 90920), (368, 56825), (400, 52279), (460, 45460), (575, 36368), (920, 22730), (1150, 18184), (1840, 11365), (2273, 9200), (2300, 9092), (4546, 4600)]