20573840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36739}}^1$

素因数の和:36759

約数の個数: 40

約数和(自身を含む): 54669120

約数和(自身を除く): 34095280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36739, 73478, 146956, 183695, 257173, 293912, 367390, 514346, 587824, 734780, 1028692, 1285865, 1469560, 2057384, 2571730, 2939120, 4114768, 5143460, 10286920, 20573840]

約数ペア:

[(1, 20573840), (2, 10286920), (4, 5143460), (5, 4114768), (7, 2939120), (8, 2571730), (10, 2057384), (14, 1469560), (16, 1285865), (20, 1028692), (28, 734780), (35, 587824), (40, 514346), (56, 367390), (70, 293912), (80, 257173), (112, 183695), (140, 146956), (280, 73478), (560, 36739)]