420128

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{691}}^1$

素因数の和:720

約数の個数: 24

約数和(自身を含む): 871920

約数和(自身を除く): 451792

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 691, 1382, 2764, 5528, 11056, 13129, 22112, 26258, 52516, 105032, 210064, 420128]

約数ペア:

[(1, 420128), (2, 210064), (4, 105032), (8, 52516), (16, 26258), (19, 22112), (32, 13129), (38, 11056), (76, 5528), (152, 2764), (304, 1382), (608, 691)]