257345640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{997}}^1$

素因数の和:1256

約数の個数: 128

約数和(自身を含む): 862272000

約数和(自身を除く): 604926360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 239, 270, 360, 478, 540, 717, 956, 997, 1080, 1195, 1434, 1912, 1994, 2151, 2390, 2868, 2991, 3585, 3988, 4302, 4780, 4985, 5736, 5982, 6453, 7170, 7976, 8604, 8973, 9560, 9970, 10755, 11964, 12906, 14340, 14955, 17208, 17946, 19940, 21510, 23928, 25812, 26919, 28680, 29910, 32265, 35892, 39880, 43020, 44865, 51624, 53838, 59820, 64530, 71784, 86040, 89730, 107676, 119640, 129060, 134595, 179460, 215352, 238283, 258120, 269190, 358920, 476566, 538380, 714849, 953132, 1076760, 1191415, 1429698, 1906264, 2144547, 2382830, 2859396, 3574245, 4289094, 4765660, 5718792, 6433641, 7148490, 8578188, 9531320, 10722735, 12867282, 14296980, 17156376, 21445470, 25734564, 28593960, 32168205, 42890940, 51469128, 64336410, 85781880, 128672820, 257345640]

約数ペア:

[(1, 257345640), (2, 128672820), (3, 85781880), (4, 64336410), (5, 51469128), (6, 42890940), (8, 32168205), (9, 28593960), (10, 25734564), (12, 21445470), (15, 17156376), (18, 14296980), (20, 12867282), (24, 10722735), (27, 9531320), (30, 8578188), (36, 7148490), (40, 6433641), (45, 5718792), (54, 4765660), (60, 4289094), (72, 3574245), (90, 2859396), (108, 2382830), (120, 2144547), (135, 1906264), (180, 1429698), (216, 1191415), (239, 1076760), (270, 953132), (360, 714849), (478, 538380), (540, 476566), (717, 358920), (956, 269190), (997, 258120), (1080, 238283), (1195, 215352), (1434, 179460), (1912, 134595), (1994, 129060), (2151, 119640), (2390, 107676), (2868, 89730), (2991, 86040), (3585, 71784), (3988, 64530), (4302, 59820), (4780, 53838), (4985, 51624), (5736, 44865), (5982, 43020), (6453, 39880), (7170, 35892), (7976, 32265), (8604, 29910), (8973, 28680), (9560, 26919), (9970, 25812), (10755, 23928), (11964, 21510), (12906, 19940), (14340, 17946), (14955, 17208)]