199920464

素因数分解:

$2^4\times {\mathrm{191}}^1\times {\mathrm{65419}}^1$

素因数の和:65618

約数の個数: 20

約数和(自身を含む): 389379840

約数和(自身を除く): 189459376

約数列:

[1, 2, 4, 8, 16, 191, 382, 764, 1528, 3056, 65419, 130838, 261676, 523352, 1046704, 12495029, 24990058, 49980116, 99960232, 199920464]

約数ペア:

[(1, 199920464), (2, 99960232), (4, 49980116), (8, 24990058), (16, 12495029), (191, 1046704), (382, 523352), (764, 261676), (1528, 130838), (3056, 65419)]