640569876

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{27817}}^1$

素因数の和:27944

約数の個数: 48

約数和(自身を含む): 1588964160

約数和(自身を除く): 948394284

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 101, 114, 202, 228, 303, 404, 606, 1212, 1919, 3838, 5757, 7676, 11514, 23028, 27817, 55634, 83451, 111268, 166902, 333804, 528523, 1057046, 1585569, 2114092, 2809517, 3171138, 5619034, 6342276, 8428551, 11238068, 16857102, 33714204, 53380823, 106761646, 160142469, 213523292, 320284938, 640569876]

約数ペア:

[(1, 640569876), (2, 320284938), (3, 213523292), (4, 160142469), (6, 106761646), (12, 53380823), (19, 33714204), (38, 16857102), (57, 11238068), (76, 8428551), (101, 6342276), (114, 5619034), (202, 3171138), (228, 2809517), (303, 2114092), (404, 1585569), (606, 1057046), (1212, 528523), (1919, 333804), (3838, 166902), (5757, 111268), (7676, 83451), (11514, 55634), (23028, 27817)]