20378610

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4621}}^1$

素因数の和:4648

約数の個数: 72

約数和(自身を含む): 61648236

約数和(自身を除く): 41269626

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4621, 9242, 13863, 23105, 27726, 32347, 41589, 46210, 64694, 69315, 83178, 97041, 138630, 161735, 194082, 207945, 226429, 291123, 323470, 415890, 452858, 485205, 582246, 679287, 970410, 1132145, 1358574, 1455615, 2037861, 2264290, 2911230, 3396435, 4075722, 6792870, 10189305, 20378610]

約数ペア:

[(1, 20378610), (2, 10189305), (3, 6792870), (5, 4075722), (6, 3396435), (7, 2911230), (9, 2264290), (10, 2037861), (14, 1455615), (15, 1358574), (18, 1132145), (21, 970410), (30, 679287), (35, 582246), (42, 485205), (45, 452858), (49, 415890), (63, 323470), (70, 291123), (90, 226429), (98, 207945), (105, 194082), (126, 161735), (147, 138630), (210, 97041), (245, 83178), (294, 69315), (315, 64694), (441, 46210), (490, 41589), (630, 32347), (735, 27726), (882, 23105), (1470, 13863), (2205, 9242), (4410, 4621)]