164828020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{7499}}^1$

素因数の和:7672

約数の個数: 48

約数和(自身を含む): 398160000

約数和(自身を除く): 233331980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4396, 5495, 7499, 10990, 14998, 21980, 29996, 37495, 52493, 74990, 104986, 149980, 209972, 262465, 524930, 1049860, 1177343, 2354686, 4709372, 5886715, 8241401, 11773430, 16482802, 23546860, 32965604, 41207005, 82414010, 164828020]

約数ペア:

[(1, 164828020), (2, 82414010), (4, 41207005), (5, 32965604), (7, 23546860), (10, 16482802), (14, 11773430), (20, 8241401), (28, 5886715), (35, 4709372), (70, 2354686), (140, 1177343), (157, 1049860), (314, 524930), (628, 262465), (785, 209972), (1099, 149980), (1570, 104986), (2198, 74990), (3140, 52493), (4396, 37495), (5495, 29996), (7499, 21980), (10990, 14998)]