20299160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72497}}^1$

素因数の和:72515

約数の個数: 32

約数和(自身を含む): 52198560

約数和(自身を除く): 31899400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72497, 144994, 289988, 362485, 507479, 579976, 724970, 1014958, 1449940, 2029916, 2537395, 2899880, 4059832, 5074790, 10149580, 20299160]

約数ペア:

[(1, 20299160), (2, 10149580), (4, 5074790), (5, 4059832), (7, 2899880), (8, 2537395), (10, 2029916), (14, 1449940), (20, 1014958), (28, 724970), (35, 579976), (40, 507479), (56, 362485), (70, 289988), (140, 144994), (280, 72497)]