640696

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{673}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 1455840

約数和(自身を除く): 815144

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 673, 952, 1346, 2692, 4711, 5384, 9422, 11441, 18844, 22882, 37688, 45764, 80087, 91528, 160174, 320348, 640696]

約数ペア:

[(1, 640696), (2, 320348), (4, 160174), (7, 91528), (8, 80087), (14, 45764), (17, 37688), (28, 22882), (34, 18844), (56, 11441), (68, 9422), (119, 5384), (136, 4711), (238, 2692), (476, 1346), (673, 952)]