2279290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 4490640

約数和(自身を除く): 2211350

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 197, 394, 445, 890, 985, 1157, 1970, 2314, 2561, 5122, 5785, 11570, 12805, 17533, 25610, 35066, 87665, 175330, 227929, 455858, 1139645, 2279290]

約数ペア:

[(1, 2279290), (2, 1139645), (5, 455858), (10, 227929), (13, 175330), (26, 87665), (65, 35066), (89, 25610), (130, 17533), (178, 12805), (197, 11570), (394, 5785), (445, 5122), (890, 2561), (985, 2314), (1157, 1970)]