212865620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{87961}}^1$

素因数の和:87992

約数の個数: 36

約数和(自身を含む): 491355732

約数和(自身を除く): 278490112

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 87961, 175922, 351844, 439805, 879610, 967571, 1759220, 1935142, 3870284, 4837855, 9675710, 10643281, 19351420, 21286562, 42573124, 53216405, 106432810, 212865620]

約数ペア:

[(1, 212865620), (2, 106432810), (4, 53216405), (5, 42573124), (10, 21286562), (11, 19351420), (20, 10643281), (22, 9675710), (44, 4837855), (55, 3870284), (110, 1935142), (121, 1759220), (220, 967571), (242, 879610), (484, 439805), (605, 351844), (1210, 175922), (2420, 87961)]