15721708040

素因数分解:

$2^3\times 5^1\times {\mathrm{1493}}^1\times {\mathrm{263257}}^1$

素因数の和:264761

約数の個数: 32

約数和(自身を含む): 35397670680

約数和(自身を除く): 19675962640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1493, 2986, 5972, 7465, 11944, 14930, 29860, 59720, 263257, 526514, 1053028, 1316285, 2106056, 2632570, 5265140, 10530280, 393042701, 786085402, 1572170804, 1965213505, 3144341608, 3930427010, 7860854020, 15721708040]

約数ペア:

[(1, 15721708040), (2, 7860854020), (4, 3930427010), (5, 3144341608), (8, 1965213505), (10, 1572170804), (20, 786085402), (40, 393042701), (1493, 10530280), (2986, 5265140), (5972, 2632570), (7465, 2106056), (11944, 1316285), (14930, 1053028), (29860, 526514), (59720, 263257)]