8216290

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:426

約数の個数: 32

約数和(自身を含む): 15603840

約数和(自身を除く): 7387550

約数列:

[1, 2, 5, 10, 23, 46, 115, 139, 230, 257, 278, 514, 695, 1285, 1390, 2570, 3197, 5911, 6394, 11822, 15985, 29555, 31970, 35723, 59110, 71446, 178615, 357230, 821629, 1643258, 4108145, 8216290]

約数ペア:

[(1, 8216290), (2, 4108145), (5, 1643258), (10, 821629), (23, 357230), (46, 178615), (115, 71446), (139, 59110), (230, 35723), (257, 31970), (278, 29555), (514, 15985), (695, 11822), (1285, 6394), (1390, 5911), (2570, 3197)]