28173659000

素因数分解:

$2^3\times 5^3\times {\mathrm{509}}^1\times {\mathrm{55351}}^1$

素因数の和:55881

約数の個数: 64

約数和(自身を含む): 66057076800

約数和(自身を除く): 37883417800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 509, 1000, 1018, 2036, 2545, 4072, 5090, 10180, 12725, 20360, 25450, 50900, 55351, 63625, 101800, 110702, 127250, 221404, 254500, 276755, 442808, 509000, 553510, 1107020, 1383775, 2214040, 2767550, 5535100, 6918875, 11070200, 13837750, 27675500, 28173659, 55351000, 56347318, 112694636, 140868295, 225389272, 281736590, 563473180, 704341475, 1126946360, 1408682950, 2817365900, 3521707375, 5634731800, 7043414750, 14086829500, 28173659000]

約数ペア:

[(1, 28173659000), (2, 14086829500), (4, 7043414750), (5, 5634731800), (8, 3521707375), (10, 2817365900), (20, 1408682950), (25, 1126946360), (40, 704341475), (50, 563473180), (100, 281736590), (125, 225389272), (200, 140868295), (250, 112694636), (500, 56347318), (509, 55351000), (1000, 28173659), (1018, 27675500), (2036, 13837750), (2545, 11070200), (4072, 6918875), (5090, 5535100), (10180, 2767550), (12725, 2214040), (20360, 1383775), (25450, 1107020), (50900, 553510), (55351, 509000), (63625, 442808), (101800, 276755), (110702, 254500), (127250, 221404)]