640376

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 1382400

約数和(自身を除く): 742024

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 383, 418, 766, 836, 1532, 1672, 3064, 4213, 7277, 8426, 14554, 16852, 29108, 33704, 58216, 80047, 160094, 320188, 640376]

約数ペア:

[(1, 640376), (2, 320188), (4, 160094), (8, 80047), (11, 58216), (19, 33704), (22, 29108), (38, 16852), (44, 14554), (76, 8426), (88, 7277), (152, 4213), (209, 3064), (383, 1672), (418, 1532), (766, 836)]