20201398

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:652

約数の個数: 32

約数和(自身を含む): 36218880

約数和(自身を除く): 16017482

約数列:

[1, 2, 7, 14, 31, 62, 89, 178, 217, 434, 523, 623, 1046, 1246, 2759, 3661, 5518, 7322, 16213, 19313, 32426, 38626, 46547, 93094, 113491, 226982, 325829, 651658, 1442957, 2885914, 10100699, 20201398]

約数ペア:

[(1, 20201398), (2, 10100699), (7, 2885914), (14, 1442957), (31, 651658), (62, 325829), (89, 226982), (178, 113491), (217, 93094), (434, 46547), (523, 38626), (623, 32426), (1046, 19313), (1246, 16213), (2759, 7322), (3661, 5518)]