64817380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{53129}}^1$

素因数の和:53199

約数の個数: 24

約数和(自身を含む): 138350520

約数和(自身を除く): 73533140

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 53129, 106258, 212516, 265645, 531290, 1062580, 3240869, 6481738, 12963476, 16204345, 32408690, 64817380]

約数ペア:

[(1, 64817380), (2, 32408690), (4, 16204345), (5, 12963476), (10, 6481738), (20, 3240869), (61, 1062580), (122, 531290), (244, 265645), (305, 212516), (610, 106258), (1220, 53129)]