20776771540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{648059}}^1$

素因数の和:648304

約数の個数: 48

約数和(自身を含む): 50082076800

約数和(自身を除く): 29305305260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 229, 458, 916, 1145, 1603, 2290, 3206, 4580, 6412, 8015, 16030, 32060, 648059, 1296118, 2592236, 3240295, 4536413, 6480590, 9072826, 12961180, 18145652, 22682065, 45364130, 90728260, 148405511, 296811022, 593622044, 742027555, 1038838577, 1484055110, 2077677154, 2968110220, 4155354308, 5194192885, 10388385770, 20776771540]

約数ペア:

[(1, 20776771540), (2, 10388385770), (4, 5194192885), (5, 4155354308), (7, 2968110220), (10, 2077677154), (14, 1484055110), (20, 1038838577), (28, 742027555), (35, 593622044), (70, 296811022), (140, 148405511), (229, 90728260), (458, 45364130), (916, 22682065), (1145, 18145652), (1603, 12961180), (2290, 9072826), (3206, 6480590), (4580, 4536413), (6412, 3240295), (8015, 2592236), (16030, 1296118), (32060, 648059)]