20571002000

素因数分解:

$2^4\times 5^3\times {\mathrm{1229}}^1\times {\mathrm{8369}}^1$

素因数の和:9621

約数の個数: 80

約数和(自身を含む): 49787103600

約数和(自身を除く): 29216101600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 1229, 2000, 2458, 4916, 6145, 8369, 9832, 12290, 16738, 19664, 24580, 30725, 33476, 41845, 49160, 61450, 66952, 83690, 98320, 122900, 133904, 153625, 167380, 209225, 245800, 307250, 334760, 418450, 491600, 614500, 669520, 836900, 1046125, 1229000, 1673800, 2092250, 2458000, 3347600, 4184500, 8369000, 10285501, 16738000, 20571002, 41142004, 51427505, 82284008, 102855010, 164568016, 205710020, 257137525, 411420040, 514275050, 822840080, 1028550100, 1285687625, 2057100200, 2571375250, 4114200400, 5142750500, 10285501000, 20571002000]

約数ペア:

[(1, 20571002000), (2, 10285501000), (4, 5142750500), (5, 4114200400), (8, 2571375250), (10, 2057100200), (16, 1285687625), (20, 1028550100), (25, 822840080), (40, 514275050), (50, 411420040), (80, 257137525), (100, 205710020), (125, 164568016), (200, 102855010), (250, 82284008), (400, 51427505), (500, 41142004), (1000, 20571002), (1229, 16738000), (2000, 10285501), (2458, 8369000), (4916, 4184500), (6145, 3347600), (8369, 2458000), (9832, 2092250), (12290, 1673800), (16738, 1229000), (19664, 1046125), (24580, 836900), (30725, 669520), (33476, 614500), (41845, 491600), (49160, 418450), (61450, 334760), (66952, 307250), (83690, 245800), (98320, 209225), (122900, 167380), (133904, 153625)]