205200520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{683}}^1$

素因数の和:767

約数の個数: 128

約数和(自身を含む): 561427200

約数和(自身を除く): 356226680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 37, 40, 56, 58, 70, 74, 116, 140, 145, 148, 185, 203, 232, 259, 280, 290, 296, 370, 406, 518, 580, 683, 740, 812, 1015, 1036, 1073, 1160, 1295, 1366, 1480, 1624, 2030, 2072, 2146, 2590, 2732, 3415, 4060, 4292, 4781, 5180, 5365, 5464, 6830, 7511, 8120, 8584, 9562, 10360, 10730, 13660, 15022, 19124, 19807, 21460, 23905, 25271, 27320, 30044, 37555, 38248, 39614, 42920, 47810, 50542, 60088, 75110, 79228, 95620, 99035, 101084, 126355, 138649, 150220, 158456, 176897, 191240, 198070, 202168, 252710, 277298, 300440, 353794, 396140, 505420, 554596, 693245, 707588, 732859, 792280, 884485, 1010840, 1109192, 1386490, 1415176, 1465718, 1768970, 2772980, 2931436, 3537940, 3664295, 5130013, 5545960, 5862872, 7075880, 7328590, 10260026, 14657180, 20520052, 25650065, 29314360, 41040104, 51300130, 102600260, 205200520]

約数ペア:

[(1, 205200520), (2, 102600260), (4, 51300130), (5, 41040104), (7, 29314360), (8, 25650065), (10, 20520052), (14, 14657180), (20, 10260026), (28, 7328590), (29, 7075880), (35, 5862872), (37, 5545960), (40, 5130013), (56, 3664295), (58, 3537940), (70, 2931436), (74, 2772980), (116, 1768970), (140, 1465718), (145, 1415176), (148, 1386490), (185, 1109192), (203, 1010840), (232, 884485), (259, 792280), (280, 732859), (290, 707588), (296, 693245), (370, 554596), (406, 505420), (518, 396140), (580, 353794), (683, 300440), (740, 277298), (812, 252710), (1015, 202168), (1036, 198070), (1073, 191240), (1160, 176897), (1295, 158456), (1366, 150220), (1480, 138649), (1624, 126355), (2030, 101084), (2072, 99035), (2146, 95620), (2590, 79228), (2732, 75110), (3415, 60088), (4060, 50542), (4292, 47810), (4781, 42920), (5180, 39614), (5365, 38248), (5464, 37555), (6830, 30044), (7511, 27320), (8120, 25271), (8584, 23905), (9562, 21460), (10360, 19807), (10730, 19124), (13660, 15022)]