20254500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{643}}^1$

素因数の和:675

約数の個数: 144

約数和(自身を含む): 73137792

約数和(自身を除く): 52883292

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 125, 126, 140, 150, 175, 180, 210, 225, 250, 252, 300, 315, 350, 375, 420, 450, 500, 525, 630, 643, 700, 750, 875, 900, 1050, 1125, 1260, 1286, 1500, 1575, 1750, 1929, 2100, 2250, 2572, 2625, 3150, 3215, 3500, 3858, 4500, 4501, 5250, 5787, 6300, 6430, 7716, 7875, 9002, 9645, 10500, 11574, 12860, 13503, 15750, 16075, 18004, 19290, 22505, 23148, 27006, 28935, 31500, 32150, 38580, 40509, 45010, 48225, 54012, 57870, 64300, 67515, 80375, 81018, 90020, 96450, 112525, 115740, 135030, 144675, 160750, 162036, 192900, 202545, 225050, 241125, 270060, 289350, 321500, 337575, 405090, 450100, 482250, 562625, 578700, 675150, 723375, 810180, 964500, 1012725, 1125250, 1350300, 1446750, 1687875, 2025450, 2250500, 2893500, 3375750, 4050900, 5063625, 6751500, 10127250, 20254500]

約数ペア:

[(1, 20254500), (2, 10127250), (3, 6751500), (4, 5063625), (5, 4050900), (6, 3375750), (7, 2893500), (9, 2250500), (10, 2025450), (12, 1687875), (14, 1446750), (15, 1350300), (18, 1125250), (20, 1012725), (21, 964500), (25, 810180), (28, 723375), (30, 675150), (35, 578700), (36, 562625), (42, 482250), (45, 450100), (50, 405090), (60, 337575), (63, 321500), (70, 289350), (75, 270060), (84, 241125), (90, 225050), (100, 202545), (105, 192900), (125, 162036), (126, 160750), (140, 144675), (150, 135030), (175, 115740), (180, 112525), (210, 96450), (225, 90020), (250, 81018), (252, 80375), (300, 67515), (315, 64300), (350, 57870), (375, 54012), (420, 48225), (450, 45010), (500, 40509), (525, 38580), (630, 32150), (643, 31500), (700, 28935), (750, 27006), (875, 23148), (900, 22505), (1050, 19290), (1125, 18004), (1260, 16075), (1286, 15750), (1500, 13503), (1575, 12860), (1750, 11574), (1929, 10500), (2100, 9645), (2250, 9002), (2572, 7875), (2625, 7716), (3150, 6430), (3215, 6300), (3500, 5787), (3858, 5250), (4500, 4501)]