639807982

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1\times {\mathrm{727}}^1$

素因数の和:1216

約数の個数: 32

約数和(自身を含む): 1060899840

約数和(自身を除く): 421091858

約数列:

[1, 2, 11, 22, 109, 218, 367, 727, 734, 1199, 1454, 2398, 4037, 7997, 8074, 15994, 40003, 79243, 80006, 158486, 266809, 440033, 533618, 871673, 880066, 1743346, 2934899, 5869798, 29082181, 58164362, 319903991, 639807982]

約数ペア:

[(1, 639807982), (2, 319903991), (11, 58164362), (22, 29082181), (109, 5869798), (218, 2934899), (367, 1743346), (727, 880066), (734, 871673), (1199, 533618), (1454, 440033), (2398, 266809), (4037, 158486), (7997, 80006), (8074, 79243), (15994, 40003)]