51421720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1783}}^1$

素因数の和:1904

約数の個数: 64

約数和(自身を含む): 133585920

約数和(自身を除く): 82164200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 721, 824, 1030, 1442, 1783, 2060, 2884, 3566, 3605, 4120, 5768, 7132, 7210, 8915, 12481, 14264, 14420, 17830, 24962, 28840, 35660, 49924, 62405, 71320, 99848, 124810, 183649, 249620, 367298, 499240, 734596, 918245, 1285543, 1469192, 1836490, 2571086, 3672980, 5142172, 6427715, 7345960, 10284344, 12855430, 25710860, 51421720]

約数ペア:

[(1, 51421720), (2, 25710860), (4, 12855430), (5, 10284344), (7, 7345960), (8, 6427715), (10, 5142172), (14, 3672980), (20, 2571086), (28, 1836490), (35, 1469192), (40, 1285543), (56, 918245), (70, 734596), (103, 499240), (140, 367298), (206, 249620), (280, 183649), (412, 124810), (515, 99848), (721, 71320), (824, 62405), (1030, 49924), (1442, 35660), (1783, 28840), (2060, 24962), (2884, 17830), (3566, 14420), (3605, 14264), (4120, 12481), (5768, 8915), (7132, 7210)]