2489999680

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{379}}^1\times {\mathrm{419}}^1$

素因数の和:829

約数の個数: 168

約数和(自身を含む): 6932066400

約数和(自身を除く): 4442066720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 379, 392, 419, 448, 490, 560, 758, 784, 838, 980, 1120, 1516, 1568, 1676, 1895, 1960, 2095, 2240, 2653, 2933, 3032, 3136, 3352, 3790, 3920, 4190, 5306, 5866, 6064, 6704, 7580, 7840, 8380, 10612, 11732, 12128, 13265, 13408, 14665, 15160, 15680, 16760, 18571, 20531, 21224, 23464, 24256, 26530, 26816, 29330, 30320, 33520, 37142, 41062, 42448, 46928, 53060, 58660, 60640, 67040, 74284, 82124, 84896, 92855, 93856, 102655, 106120, 117320, 121280, 134080, 148568, 158801, 164248, 169792, 185710, 187712, 205310, 212240, 234640, 297136, 317602, 328496, 371420, 410620, 424480, 469280, 594272, 635204, 656992, 742840, 794005, 821240, 848960, 938560, 1111607, 1188544, 1270408, 1313984, 1485680, 1588010, 1642480, 2223214, 2540816, 2971360, 3176020, 3284960, 4446428, 5081632, 5558035, 5942720, 6352040, 6569920, 7781249, 8892856, 10163264, 11116070, 12704080, 15562498, 17785712, 22232140, 25408160, 31124996, 35571424, 38906245, 44464280, 50816320, 62249992, 71142848, 77812490, 88928560, 124499984, 155624980, 177857120, 248999968, 311249960, 355714240, 497999936, 622499920, 1244999840, 2489999680]

約数ペア:

[(1, 2489999680), (2, 1244999840), (4, 622499920), (5, 497999936), (7, 355714240), (8, 311249960), (10, 248999968), (14, 177857120), (16, 155624980), (20, 124499984), (28, 88928560), (32, 77812490), (35, 71142848), (40, 62249992), (49, 50816320), (56, 44464280), (64, 38906245), (70, 35571424), (80, 31124996), (98, 25408160), (112, 22232140), (140, 17785712), (160, 15562498), (196, 12704080), (224, 11116070), (245, 10163264), (280, 8892856), (320, 7781249), (379, 6569920), (392, 6352040), (419, 5942720), (448, 5558035), (490, 5081632), (560, 4446428), (758, 3284960), (784, 3176020), (838, 2971360), (980, 2540816), (1120, 2223214), (1516, 1642480), (1568, 1588010), (1676, 1485680), (1895, 1313984), (1960, 1270408), (2095, 1188544), (2240, 1111607), (2653, 938560), (2933, 848960), (3032, 821240), (3136, 794005), (3352, 742840), (3790, 656992), (3920, 635204), (4190, 594272), (5306, 469280), (5866, 424480), (6064, 410620), (6704, 371420), (7580, 328496), (7840, 317602), (8380, 297136), (10612, 234640), (11732, 212240), (12128, 205310), (13265, 187712), (13408, 185710), (14665, 169792), (15160, 164248), (15680, 158801), (16760, 148568), (18571, 134080), (20531, 121280), (21224, 117320), (23464, 106120), (24256, 102655), (26530, 93856), (26816, 92855), (29330, 84896), (30320, 82124), (33520, 74284), (37142, 67040), (41062, 60640), (42448, 58660), (46928, 53060)]