638331192

素因数分解:

$2^3\times 3^4\times {\mathrm{985079}}^1$

素因数の和:985097

約数の個数: 40

約数和(自身を含む): 1787920200

約数和(自身を除く): 1149589008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 985079, 1970158, 2955237, 3940316, 5910474, 7880632, 8865711, 11820948, 17731422, 23641896, 26597133, 35462844, 53194266, 70925688, 79791399, 106388532, 159582798, 212777064, 319165596, 638331192]

約数ペア:

[(1, 638331192), (2, 319165596), (3, 212777064), (4, 159582798), (6, 106388532), (8, 79791399), (9, 70925688), (12, 53194266), (18, 35462844), (24, 26597133), (27, 23641896), (36, 17731422), (54, 11820948), (72, 8865711), (81, 7880632), (108, 5910474), (162, 3940316), (216, 2955237), (324, 1970158), (648, 985079)]