668521384

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{55673}}^1$

素因数の和:55777

約数の個数: 32

約数和(自身を含む): 1336176000

約数和(自身を除く): 667654616

約数列:

[1, 2, 4, 8, 19, 38, 76, 79, 152, 158, 316, 632, 1501, 3002, 6004, 12008, 55673, 111346, 222692, 445384, 1057787, 2115574, 4231148, 4398167, 8462296, 8796334, 17592668, 35185336, 83565173, 167130346, 334260692, 668521384]

約数ペア:

[(1, 668521384), (2, 334260692), (4, 167130346), (8, 83565173), (19, 35185336), (38, 17592668), (76, 8796334), (79, 8462296), (152, 4398167), (158, 4231148), (316, 2115574), (632, 1057787), (1501, 445384), (3002, 222692), (6004, 111346), (12008, 55673)]