3965890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:474

約数の個数: 32

約数和(自身を含む): 7641216

約数和(自身を除く): 3675326

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 401, 430, 802, 989, 1978, 2005, 4010, 4945, 9223, 9890, 17243, 18446, 34486, 46115, 86215, 92230, 172430, 396589, 793178, 1982945, 3965890]

約数ペア:

[(1, 3965890), (2, 1982945), (5, 793178), (10, 396589), (23, 172430), (43, 92230), (46, 86215), (86, 46115), (115, 34486), (215, 18446), (230, 17243), (401, 9890), (430, 9223), (802, 4945), (989, 4010), (1978, 2005)]