380640208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:396

約数の個数: 80

約数和(自身を含む): 814253440

約数和(自身を除く): 433613232

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 103, 104, 109, 163, 206, 208, 218, 326, 412, 436, 652, 824, 872, 1304, 1339, 1417, 1648, 1744, 2119, 2608, 2678, 2834, 4238, 5356, 5668, 8476, 10712, 11227, 11336, 16789, 16952, 17767, 21424, 22454, 22672, 33578, 33904, 35534, 44908, 67156, 71068, 89816, 134312, 142136, 145951, 179632, 218257, 230971, 268624, 284272, 291902, 436514, 461942, 583804, 873028, 923884, 1167608, 1746056, 1830001, 1847768, 2335216, 3492112, 3660002, 3695536, 7320004, 14640008, 23790013, 29280016, 47580026, 95160052, 190320104, 380640208]

約数ペア:

[(1, 380640208), (2, 190320104), (4, 95160052), (8, 47580026), (13, 29280016), (16, 23790013), (26, 14640008), (52, 7320004), (103, 3695536), (104, 3660002), (109, 3492112), (163, 2335216), (206, 1847768), (208, 1830001), (218, 1746056), (326, 1167608), (412, 923884), (436, 873028), (652, 583804), (824, 461942), (872, 436514), (1304, 291902), (1339, 284272), (1417, 268624), (1648, 230971), (1744, 218257), (2119, 179632), (2608, 145951), (2678, 142136), (2834, 134312), (4238, 89816), (5356, 71068), (5668, 67156), (8476, 44908), (10712, 35534), (11227, 33904), (11336, 33578), (16789, 22672), (16952, 22454), (17767, 21424)]