25720460

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 55883520

約数和(自身を除く): 30163060

約数列:

[1, 2, 4, 5, 10, 20, 59, 71, 118, 142, 236, 284, 295, 307, 355, 590, 614, 710, 1180, 1228, 1420, 1535, 3070, 4189, 6140, 8378, 16756, 18113, 20945, 21797, 36226, 41890, 43594, 72452, 83780, 87188, 90565, 108985, 181130, 217970, 362260, 435940, 1286023, 2572046, 5144092, 6430115, 12860230, 25720460]

約数ペア:

[(1, 25720460), (2, 12860230), (4, 6430115), (5, 5144092), (10, 2572046), (20, 1286023), (59, 435940), (71, 362260), (118, 217970), (142, 181130), (236, 108985), (284, 90565), (295, 87188), (307, 83780), (355, 72452), (590, 43594), (614, 41890), (710, 36226), (1180, 21797), (1228, 20945), (1420, 18113), (1535, 16756), (3070, 8378), (4189, 6140)]