20791800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11551}}^1$

素因数の和:11573

約数の個数: 72

約数和(自身を含む): 69831840

約数和(自身を除く): 49040040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800, 11551, 23102, 34653, 46204, 57755, 69306, 92408, 103959, 115510, 138612, 173265, 207918, 231020, 277224, 288775, 346530, 415836, 462040, 519795, 577550, 693060, 831672, 866325, 1039590, 1155100, 1386120, 1732650, 2079180, 2310200, 2598975, 3465300, 4158360, 5197950, 6930600, 10395900, 20791800]

約数ペア:

[(1, 20791800), (2, 10395900), (3, 6930600), (4, 5197950), (5, 4158360), (6, 3465300), (8, 2598975), (9, 2310200), (10, 2079180), (12, 1732650), (15, 1386120), (18, 1155100), (20, 1039590), (24, 866325), (25, 831672), (30, 693060), (36, 577550), (40, 519795), (45, 462040), (50, 415836), (60, 346530), (72, 288775), (75, 277224), (90, 231020), (100, 207918), (120, 173265), (150, 138612), (180, 115510), (200, 103959), (225, 92408), (300, 69306), (360, 57755), (450, 46204), (600, 34653), (900, 23102), (1800, 11551)]