19972070

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 36923040

約数和(自身を除く): 16950970

約数列:

[1, 2, 5, 10, 73, 109, 146, 218, 251, 365, 502, 545, 730, 1090, 1255, 2510, 7957, 15914, 18323, 27359, 36646, 39785, 54718, 79570, 91615, 136795, 183230, 273590, 1997207, 3994414, 9986035, 19972070]

約数ペア:

[(1, 19972070), (2, 9986035), (5, 3994414), (10, 1997207), (73, 273590), (109, 183230), (146, 136795), (218, 91615), (251, 79570), (365, 54718), (502, 39785), (545, 36646), (730, 27359), (1090, 18323), (1255, 15914), (2510, 7957)]