19920040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71143}}^1$

素因数の和:71161

約数の個数: 32

約数和(自身を含む): 51223680

約数和(自身を除く): 31303640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71143, 142286, 284572, 355715, 498001, 569144, 711430, 996002, 1422860, 1992004, 2490005, 2845720, 3984008, 4980010, 9960020, 19920040]

約数ペア:

[(1, 19920040), (2, 9960020), (4, 4980010), (5, 3984008), (7, 2845720), (8, 2490005), (10, 1992004), (14, 1422860), (20, 996002), (28, 711430), (35, 569144), (40, 498001), (56, 355715), (70, 284572), (140, 142286), (280, 71143)]