87441680

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{4253}}^1$

素因数の和:4523

約数の個数: 40

約数和(自身を含む): 204140952

約数和(自身を除く): 116699272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 4253, 5140, 8506, 10280, 17012, 20560, 21265, 34024, 42530, 68048, 85060, 170120, 340240, 1093021, 2186042, 4372084, 5465105, 8744168, 10930210, 17488336, 21860420, 43720840, 87441680]

約数ペア:

[(1, 87441680), (2, 43720840), (4, 21860420), (5, 17488336), (8, 10930210), (10, 8744168), (16, 5465105), (20, 4372084), (40, 2186042), (80, 1093021), (257, 340240), (514, 170120), (1028, 85060), (1285, 68048), (2056, 42530), (2570, 34024), (4112, 21265), (4253, 20560), (5140, 17012), (8506, 10280)]