389622645

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{19813}}^1$

素因数の和:19866

約数の個数: 48

約数和(自身を含む): 741836160

約数和(自身を除く): 352213515

約数列:

[1, 3, 5, 9, 15, 19, 23, 45, 57, 69, 95, 115, 171, 207, 285, 345, 437, 855, 1035, 1311, 2185, 3933, 6555, 19665, 19813, 59439, 99065, 178317, 297195, 376447, 455699, 891585, 1129341, 1367097, 1882235, 2278495, 3388023, 4101291, 5646705, 6835485, 8658281, 16940115, 20506455, 25974843, 43291405, 77924529, 129874215, 389622645]

約数ペア:

[(1, 389622645), (3, 129874215), (5, 77924529), (9, 43291405), (15, 25974843), (19, 20506455), (23, 16940115), (45, 8658281), (57, 6835485), (69, 5646705), (95, 4101291), (115, 3388023), (171, 2278495), (207, 1882235), (285, 1367097), (345, 1129341), (437, 891585), (855, 455699), (1035, 376447), (1311, 297195), (2185, 178317), (3933, 99065), (6555, 59439), (19665, 19813)]