639905706

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{111443}}^1$

素因数の和:111491

約数の個数: 48

約数和(自身を含む): 1564673760

約数和(自身を除く): 924768054

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 29, 33, 58, 66, 87, 99, 174, 198, 261, 319, 522, 638, 957, 1914, 2871, 5742, 111443, 222886, 334329, 668658, 1002987, 1225873, 2005974, 2451746, 3231847, 3677619, 6463694, 7355238, 9695541, 11032857, 19391082, 22065714, 29086623, 35550317, 58173246, 71100634, 106650951, 213301902, 319952853, 639905706]

約数ペア:

[(1, 639905706), (2, 319952853), (3, 213301902), (6, 106650951), (9, 71100634), (11, 58173246), (18, 35550317), (22, 29086623), (29, 22065714), (33, 19391082), (58, 11032857), (66, 9695541), (87, 7355238), (99, 6463694), (174, 3677619), (198, 3231847), (261, 2451746), (319, 2005974), (522, 1225873), (638, 1002987), (957, 668658), (1914, 334329), (2871, 222886), (5742, 111443)]