12860680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1997}}^1$

素因数の和:2038

約数の個数: 64

約数和(自身を含む): 34525440

約数和(自身を除く): 21664760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 1997, 3220, 3994, 6440, 7988, 9985, 13979, 15976, 19970, 27958, 39940, 45931, 55916, 69895, 79880, 91862, 111832, 139790, 183724, 229655, 279580, 321517, 367448, 459310, 559160, 643034, 918620, 1286068, 1607585, 1837240, 2572136, 3215170, 6430340, 12860680]

約数ペア:

[(1, 12860680), (2, 6430340), (4, 3215170), (5, 2572136), (7, 1837240), (8, 1607585), (10, 1286068), (14, 918620), (20, 643034), (23, 559160), (28, 459310), (35, 367448), (40, 321517), (46, 279580), (56, 229655), (70, 183724), (92, 139790), (115, 111832), (140, 91862), (161, 79880), (184, 69895), (230, 55916), (280, 45931), (322, 39940), (460, 27958), (644, 19970), (805, 15976), (920, 13979), (1288, 9985), (1610, 7988), (1997, 6440), (3220, 3994)]