201709720

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{16111}}^1$

素因数の和:16435

約数の個数: 32

約数和(自身を含む): 455325120

約数和(自身を除く): 253615400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12520, 16111, 32222, 64444, 80555, 128888, 161110, 322220, 644440, 5042743, 10085486, 20170972, 25213715, 40341944, 50427430, 100854860, 201709720]

約数ペア:

[(1, 201709720), (2, 100854860), (4, 50427430), (5, 40341944), (8, 25213715), (10, 20170972), (20, 10085486), (40, 5042743), (313, 644440), (626, 322220), (1252, 161110), (1565, 128888), (2504, 80555), (3130, 64444), (6260, 32222), (12520, 16111)]