19727960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70457}}^1$

素因数の和:70475

約数の個数: 32

約数和(自身を含む): 50729760

約数和(自身を除く): 31001800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70457, 140914, 281828, 352285, 493199, 563656, 704570, 986398, 1409140, 1972796, 2465995, 2818280, 3945592, 4931990, 9863980, 19727960]

約数ペア:

[(1, 19727960), (2, 9863980), (4, 4931990), (5, 3945592), (7, 2818280), (8, 2465995), (10, 1972796), (14, 1409140), (20, 986398), (28, 704570), (35, 563656), (40, 493199), (56, 352285), (70, 281828), (140, 140914), (280, 70457)]