19648100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{3221}}^1$

素因数の和:3296

約数の個数: 36

約数和(自身を含む): 43348788

約数和(自身を除く): 23700688

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 3221, 6100, 6442, 12884, 16105, 32210, 64420, 80525, 161050, 196481, 322100, 392962, 785924, 982405, 1964810, 3929620, 4912025, 9824050, 19648100]

約数ペア:

[(1, 19648100), (2, 9824050), (4, 4912025), (5, 3929620), (10, 1964810), (20, 982405), (25, 785924), (50, 392962), (61, 322100), (100, 196481), (122, 161050), (244, 80525), (305, 64420), (610, 32210), (1220, 16105), (1525, 12884), (3050, 6442), (3221, 6100)]