20145160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71947}}^1$

素因数の和:71965

約数の個数: 32

約数和(自身を含む): 51802560

約数和(自身を除く): 31657400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71947, 143894, 287788, 359735, 503629, 575576, 719470, 1007258, 1438940, 2014516, 2518145, 2877880, 4029032, 5036290, 10072580, 20145160]

約数ペア:

[(1, 20145160), (2, 10072580), (4, 5036290), (5, 4029032), (7, 2877880), (8, 2518145), (10, 2014516), (14, 1438940), (20, 1007258), (28, 719470), (35, 575576), (40, 503629), (56, 359735), (70, 287788), (140, 143894), (280, 71947)]