19717460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140839}}^1$

素因数の和:140855

約数の個数: 24

約数和(自身を含む): 47322240

約数和(自身を除く): 27604780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140839, 281678, 563356, 704195, 985873, 1408390, 1971746, 2816780, 3943492, 4929365, 9858730, 19717460]

約数ペア:

[(1, 19717460), (2, 9858730), (4, 4929365), (5, 3943492), (7, 2816780), (10, 1971746), (14, 1408390), (20, 985873), (28, 704195), (35, 563356), (70, 281678), (140, 140839)]