256575468

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{1171}}^1$

素因数の和:1259

約数の個数: 72

約数和(自身を含む): 651725760

約数和(自身を除く): 395150292

約数列:

[1, 2, 3, 4, 6, 12, 19, 31, 38, 57, 62, 76, 93, 114, 124, 186, 228, 372, 589, 961, 1171, 1178, 1767, 1922, 2342, 2356, 2883, 3513, 3534, 3844, 4684, 5766, 7026, 7068, 11532, 14052, 18259, 22249, 36301, 36518, 44498, 54777, 66747, 72602, 73036, 88996, 108903, 109554, 133494, 145204, 217806, 219108, 266988, 435612, 689719, 1125331, 1379438, 2069157, 2250662, 2758876, 3375993, 4138314, 4501324, 6751986, 8276628, 13503972, 21381289, 42762578, 64143867, 85525156, 128287734, 256575468]

約数ペア:

[(1, 256575468), (2, 128287734), (3, 85525156), (4, 64143867), (6, 42762578), (12, 21381289), (19, 13503972), (31, 8276628), (38, 6751986), (57, 4501324), (62, 4138314), (76, 3375993), (93, 2758876), (114, 2250662), (124, 2069157), (186, 1379438), (228, 1125331), (372, 689719), (589, 435612), (961, 266988), (1171, 219108), (1178, 217806), (1767, 145204), (1922, 133494), (2342, 109554), (2356, 108903), (2883, 88996), (3513, 73036), (3534, 72602), (3844, 66747), (4684, 54777), (5766, 44498), (7026, 36518), (7068, 36301), (11532, 22249), (14052, 18259)]