20842530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 52005888

約数和(自身を除く): 31163358

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 107, 129, 151, 214, 215, 258, 302, 321, 430, 453, 535, 642, 645, 755, 906, 1070, 1290, 1510, 1605, 2265, 3210, 4530, 4601, 6493, 9202, 12986, 13803, 16157, 19479, 23005, 27606, 32314, 32465, 38958, 46010, 48471, 64930, 69015, 80785, 96942, 97395, 138030, 161570, 194790, 242355, 484710, 694751, 1389502, 2084253, 3473755, 4168506, 6947510, 10421265, 20842530]

約数ペア:

[(1, 20842530), (2, 10421265), (3, 6947510), (5, 4168506), (6, 3473755), (10, 2084253), (15, 1389502), (30, 694751), (43, 484710), (86, 242355), (107, 194790), (129, 161570), (151, 138030), (214, 97395), (215, 96942), (258, 80785), (302, 69015), (321, 64930), (430, 48471), (453, 46010), (535, 38958), (642, 32465), (645, 32314), (755, 27606), (906, 23005), (1070, 19479), (1290, 16157), (1510, 13803), (1605, 12986), (2265, 9202), (3210, 6493), (4530, 4601)]