19956100

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1013}}^1$

素因数の和:1224

約数の個数: 36

約数和(自身を含む): 43567524

約数和(自身を除く): 23611424

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 985, 1013, 1970, 2026, 3940, 4052, 4925, 5065, 9850, 10130, 19700, 20260, 25325, 50650, 101300, 199561, 399122, 798244, 997805, 1995610, 3991220, 4989025, 9978050, 19956100]

約数ペア:

[(1, 19956100), (2, 9978050), (4, 4989025), (5, 3991220), (10, 1995610), (20, 997805), (25, 798244), (50, 399122), (100, 199561), (197, 101300), (394, 50650), (788, 25325), (985, 20260), (1013, 19700), (1970, 10130), (2026, 9850), (3940, 5065), (4052, 4925)]