20012488

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 38376000

約数和(自身を除く): 18363512

約数列:

[1, 2, 4, 8, 103, 149, 163, 206, 298, 326, 412, 596, 652, 824, 1192, 1304, 15347, 16789, 24287, 30694, 33578, 48574, 61388, 67156, 97148, 122776, 134312, 194296, 2501561, 5003122, 10006244, 20012488]

約数ペア:

[(1, 20012488), (2, 10006244), (4, 5003122), (8, 2501561), (103, 194296), (149, 134312), (163, 122776), (206, 97148), (298, 67156), (326, 61388), (412, 48574), (596, 33578), (652, 30694), (824, 24287), (1192, 16789), (1304, 15347)]