20442730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 26005910

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 139, 154, 191, 278, 382, 385, 695, 770, 955, 973, 1337, 1390, 1529, 1910, 1946, 2101, 2674, 3058, 4202, 4865, 6685, 7645, 9730, 10505, 10703, 13370, 14707, 15290, 21010, 21406, 26549, 29414, 53098, 53515, 73535, 107030, 132745, 147070, 185843, 265490, 292039, 371686, 584078, 929215, 1460195, 1858430, 2044273, 2920390, 4088546, 10221365, 20442730]

約数ペア:

[(1, 20442730), (2, 10221365), (5, 4088546), (7, 2920390), (10, 2044273), (11, 1858430), (14, 1460195), (22, 929215), (35, 584078), (55, 371686), (70, 292039), (77, 265490), (110, 185843), (139, 147070), (154, 132745), (191, 107030), (278, 73535), (382, 53515), (385, 53098), (695, 29414), (770, 26549), (955, 21406), (973, 21010), (1337, 15290), (1390, 14707), (1529, 13370), (1910, 10703), (1946, 10505), (2101, 9730), (2674, 7645), (3058, 6685), (4202, 4865)]