3917960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2389}}^1$

素因数の和:2441

約数の個数: 32

約数和(自身を含む): 9034200

約数和(自身を除く): 5116240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 2389, 4778, 9556, 11945, 19112, 23890, 47780, 95560, 97949, 195898, 391796, 489745, 783592, 979490, 1958980, 3917960]

約数ペア:

[(1, 3917960), (2, 1958980), (4, 979490), (5, 783592), (8, 489745), (10, 391796), (20, 195898), (40, 97949), (41, 95560), (82, 47780), (164, 23890), (205, 19112), (328, 11945), (410, 9556), (820, 4778), (1640, 2389)]