205737700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:570

約数の個数: 144

約数和(自身を含む): 555520000

約数和(自身を除く): 349782300

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 31, 35, 38, 50, 62, 70, 76, 95, 100, 124, 133, 140, 155, 175, 190, 217, 266, 310, 350, 380, 434, 475, 499, 532, 589, 620, 665, 700, 775, 868, 950, 998, 1085, 1178, 1330, 1550, 1900, 1996, 2170, 2356, 2495, 2660, 2945, 3100, 3325, 3493, 4123, 4340, 4990, 5425, 5890, 6650, 6986, 8246, 9481, 9980, 10850, 11780, 12475, 13300, 13972, 14725, 15469, 16492, 17465, 18962, 20615, 21700, 24950, 29450, 30938, 34930, 37924, 41230, 47405, 49900, 58900, 61876, 66367, 69860, 77345, 82460, 87325, 94810, 103075, 108283, 132734, 154690, 174650, 189620, 206150, 216566, 237025, 265468, 293911, 309380, 331835, 349300, 386725, 412300, 433132, 474050, 541415, 587822, 663670, 773450, 948100, 1082830, 1175644, 1327340, 1469555, 1546900, 1659175, 2057377, 2165660, 2707075, 2939110, 3318350, 4114754, 5414150, 5878220, 6636700, 7347775, 8229508, 10286885, 10828300, 14695550, 20573770, 29391100, 41147540, 51434425, 102868850, 205737700]

約数ペア:

[(1, 205737700), (2, 102868850), (4, 51434425), (5, 41147540), (7, 29391100), (10, 20573770), (14, 14695550), (19, 10828300), (20, 10286885), (25, 8229508), (28, 7347775), (31, 6636700), (35, 5878220), (38, 5414150), (50, 4114754), (62, 3318350), (70, 2939110), (76, 2707075), (95, 2165660), (100, 2057377), (124, 1659175), (133, 1546900), (140, 1469555), (155, 1327340), (175, 1175644), (190, 1082830), (217, 948100), (266, 773450), (310, 663670), (350, 587822), (380, 541415), (434, 474050), (475, 433132), (499, 412300), (532, 386725), (589, 349300), (620, 331835), (665, 309380), (700, 293911), (775, 265468), (868, 237025), (950, 216566), (998, 206150), (1085, 189620), (1178, 174650), (1330, 154690), (1550, 132734), (1900, 108283), (1996, 103075), (2170, 94810), (2356, 87325), (2495, 82460), (2660, 77345), (2945, 69860), (3100, 66367), (3325, 61876), (3493, 58900), (4123, 49900), (4340, 47405), (4990, 41230), (5425, 37924), (5890, 34930), (6650, 30938), (6986, 29450), (8246, 24950), (9481, 21700), (9980, 20615), (10850, 18962), (11780, 17465), (12475, 16492), (13300, 15469), (13972, 14725)]