664688638

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{1789}}^1$

素因数の和:2052

約数の個数: 32

約数和(自身を含む): 1071766080

約数和(自身を除く): 407077442

約数列:

[1, 2, 23, 41, 46, 82, 197, 394, 943, 1789, 1886, 3578, 4531, 8077, 9062, 16154, 41147, 73349, 82294, 146698, 185771, 352433, 371542, 704866, 1687027, 3374054, 8105959, 14449753, 16211918, 28899506, 332344319, 664688638]

約数ペア:

[(1, 664688638), (2, 332344319), (23, 28899506), (41, 16211918), (46, 14449753), (82, 8105959), (197, 3374054), (394, 1687027), (943, 704866), (1789, 371542), (1886, 352433), (3578, 185771), (4531, 146698), (8077, 82294), (9062, 73349), (16154, 41147)]