64406485

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 96526080

約数和(自身を除く): 32119595

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 121, 143, 209, 247, 431, 605, 715, 1045, 1235, 1573, 2155, 2299, 2717, 4741, 5603, 7865, 8189, 11495, 13585, 23705, 28015, 29887, 40945, 52151, 61633, 90079, 106457, 149435, 260755, 308165, 450395, 532285, 677963, 990869, 1171027, 3389815, 4954345, 5855135, 12881297, 64406485]

約数ペア:

[(1, 64406485), (5, 12881297), (11, 5855135), (13, 4954345), (19, 3389815), (55, 1171027), (65, 990869), (95, 677963), (121, 532285), (143, 450395), (209, 308165), (247, 260755), (431, 149435), (605, 106457), (715, 90079), (1045, 61633), (1235, 52151), (1573, 40945), (2155, 29887), (2299, 28015), (2717, 23705), (4741, 13585), (5603, 11495), (7865, 8189)]