349898440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{143401}}^1$

素因数の和:143473

約数の個数: 32

約数和(自身を含む): 800183160

約数和(自身を除く): 450284720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 143401, 286802, 573604, 717005, 1147208, 1434010, 2868020, 5736040, 8747461, 17494922, 34989844, 43737305, 69979688, 87474610, 174949220, 349898440]

約数ペア:

[(1, 349898440), (2, 174949220), (4, 87474610), (5, 69979688), (8, 43737305), (10, 34989844), (20, 17494922), (40, 8747461), (61, 5736040), (122, 2868020), (244, 1434010), (305, 1147208), (488, 717005), (610, 573604), (1220, 286802), (2440, 143401)]