20653500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^2\times {\mathrm{281}}^1$

素因数の和:317

約数の個数: 144

約数和(自身を含む): 70211232

約数和(自身を除く): 49557732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 125, 140, 147, 150, 175, 196, 210, 245, 250, 281, 294, 300, 350, 375, 420, 490, 500, 525, 562, 588, 700, 735, 750, 843, 875, 980, 1050, 1124, 1225, 1405, 1470, 1500, 1686, 1750, 1967, 2100, 2450, 2625, 2810, 2940, 3372, 3500, 3675, 3934, 4215, 4900, 5250, 5620, 5901, 6125, 7025, 7350, 7868, 8430, 9835, 10500, 11802, 12250, 13769, 14050, 14700, 16860, 18375, 19670, 21075, 23604, 24500, 27538, 28100, 29505, 35125, 36750, 39340, 41307, 42150, 49175, 55076, 59010, 68845, 70250, 73500, 82614, 84300, 98350, 105375, 118020, 137690, 140500, 147525, 165228, 196700, 206535, 210750, 245875, 275380, 295050, 344225, 413070, 421500, 491750, 590100, 688450, 737625, 826140, 983500, 1032675, 1376900, 1475250, 1721125, 2065350, 2950500, 3442250, 4130700, 5163375, 6884500, 10326750, 20653500]

約数ペア:

[(1, 20653500), (2, 10326750), (3, 6884500), (4, 5163375), (5, 4130700), (6, 3442250), (7, 2950500), (10, 2065350), (12, 1721125), (14, 1475250), (15, 1376900), (20, 1032675), (21, 983500), (25, 826140), (28, 737625), (30, 688450), (35, 590100), (42, 491750), (49, 421500), (50, 413070), (60, 344225), (70, 295050), (75, 275380), (84, 245875), (98, 210750), (100, 206535), (105, 196700), (125, 165228), (140, 147525), (147, 140500), (150, 137690), (175, 118020), (196, 105375), (210, 98350), (245, 84300), (250, 82614), (281, 73500), (294, 70250), (300, 68845), (350, 59010), (375, 55076), (420, 49175), (490, 42150), (500, 41307), (525, 39340), (562, 36750), (588, 35125), (700, 29505), (735, 28100), (750, 27538), (843, 24500), (875, 23604), (980, 21075), (1050, 19670), (1124, 18375), (1225, 16860), (1405, 14700), (1470, 14050), (1500, 13769), (1686, 12250), (1750, 11802), (1967, 10500), (2100, 9835), (2450, 8430), (2625, 7868), (2810, 7350), (2940, 7025), (3372, 6125), (3500, 5901), (3675, 5620), (3934, 5250), (4215, 4900)]