208713020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{1427}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 449100288

約数和(自身を除く): 240387268

約数列:

[1, 2, 4, 5, 10, 20, 71, 103, 142, 206, 284, 355, 412, 515, 710, 1030, 1420, 1427, 2060, 2854, 5708, 7135, 7313, 14270, 14626, 28540, 29252, 36565, 73130, 101317, 146260, 146981, 202634, 293962, 405268, 506585, 587924, 734905, 1013170, 1469810, 2026340, 2939620, 10435651, 20871302, 41742604, 52178255, 104356510, 208713020]

約数ペア:

[(1, 208713020), (2, 104356510), (4, 52178255), (5, 41742604), (10, 20871302), (20, 10435651), (71, 2939620), (103, 2026340), (142, 1469810), (206, 1013170), (284, 734905), (355, 587924), (412, 506585), (515, 405268), (710, 293962), (1030, 202634), (1420, 146981), (1427, 146260), (2060, 101317), (2854, 73130), (5708, 36565), (7135, 29252), (7313, 28540), (14270, 14626)]