66719848

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{809}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 137853900

約数和(自身を除く): 71134052

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 169, 244, 338, 488, 676, 793, 809, 1352, 1586, 1618, 3172, 3236, 6344, 6472, 10309, 10517, 20618, 21034, 41236, 42068, 49349, 82472, 84136, 98698, 136721, 197396, 273442, 394792, 546884, 641537, 1093768, 1283074, 2566148, 5132296, 8339981, 16679962, 33359924, 66719848]

約数ペア:

[(1, 66719848), (2, 33359924), (4, 16679962), (8, 8339981), (13, 5132296), (26, 2566148), (52, 1283074), (61, 1093768), (104, 641537), (122, 546884), (169, 394792), (244, 273442), (338, 197396), (488, 136721), (676, 98698), (793, 84136), (809, 82472), (1352, 49349), (1586, 42068), (1618, 41236), (3172, 21034), (3236, 20618), (6344, 10517), (6472, 10309)]