240166640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{311}}^1$

素因数の和:535

約数の個数: 120

約数和(自身を含む): 654949152

約数和(自身を除く): 414782512

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 197, 245, 280, 311, 392, 394, 490, 560, 622, 784, 788, 980, 985, 1244, 1379, 1555, 1576, 1960, 1970, 2177, 2488, 2758, 3110, 3152, 3920, 3940, 4354, 4976, 5516, 6220, 6895, 7880, 8708, 9653, 10885, 11032, 12440, 13790, 15239, 15760, 17416, 19306, 21770, 22064, 24880, 27580, 30478, 34832, 38612, 43540, 48265, 55160, 60956, 61267, 76195, 77224, 87080, 96530, 110320, 121912, 122534, 152390, 154448, 174160, 193060, 243824, 245068, 304780, 306335, 386120, 428869, 490136, 609560, 612670, 772240, 857738, 980272, 1219120, 1225340, 1715476, 2144345, 2450680, 3002083, 3430952, 4288690, 4901360, 6004166, 6861904, 8577380, 12008332, 15010415, 17154760, 24016664, 30020830, 34309520, 48033328, 60041660, 120083320, 240166640]

約数ペア:

[(1, 240166640), (2, 120083320), (4, 60041660), (5, 48033328), (7, 34309520), (8, 30020830), (10, 24016664), (14, 17154760), (16, 15010415), (20, 12008332), (28, 8577380), (35, 6861904), (40, 6004166), (49, 4901360), (56, 4288690), (70, 3430952), (80, 3002083), (98, 2450680), (112, 2144345), (140, 1715476), (196, 1225340), (197, 1219120), (245, 980272), (280, 857738), (311, 772240), (392, 612670), (394, 609560), (490, 490136), (560, 428869), (622, 386120), (784, 306335), (788, 304780), (980, 245068), (985, 243824), (1244, 193060), (1379, 174160), (1555, 154448), (1576, 152390), (1960, 122534), (1970, 121912), (2177, 110320), (2488, 96530), (2758, 87080), (3110, 77224), (3152, 76195), (3920, 61267), (3940, 60956), (4354, 55160), (4976, 48265), (5516, 43540), (6220, 38612), (6895, 34832), (7880, 30478), (8708, 27580), (9653, 24880), (10885, 22064), (11032, 21770), (12440, 19306), (13790, 17416), (15239, 15760)]