199454020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{1069}}^1$

素因数の和:1588

約数の個数: 48

約数和(自身を含む): 442209600

約数和(自身を除く): 242755580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 491, 982, 1069, 1964, 2138, 2455, 4276, 4910, 5345, 9329, 9820, 10690, 18658, 20311, 21380, 37316, 40622, 46645, 81244, 93290, 101555, 186580, 203110, 406220, 524879, 1049758, 2099516, 2624395, 5248790, 9972701, 10497580, 19945402, 39890804, 49863505, 99727010, 199454020]

約数ペア:

[(1, 199454020), (2, 99727010), (4, 49863505), (5, 39890804), (10, 19945402), (19, 10497580), (20, 9972701), (38, 5248790), (76, 2624395), (95, 2099516), (190, 1049758), (380, 524879), (491, 406220), (982, 203110), (1069, 186580), (1964, 101555), (2138, 93290), (2455, 81244), (4276, 46645), (4910, 40622), (5345, 37316), (9329, 21380), (9820, 20311), (10690, 18658)]