19291220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74197}}^1$

素因数の和:74219

約数の個数: 24

約数和(自身を含む): 43628424

約数和(自身を除く): 24337204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74197, 148394, 296788, 370985, 741970, 964561, 1483940, 1929122, 3858244, 4822805, 9645610, 19291220]

約数ペア:

[(1, 19291220), (2, 9645610), (4, 4822805), (5, 3858244), (10, 1929122), (13, 1483940), (20, 964561), (26, 741970), (52, 370985), (65, 296788), (130, 148394), (260, 74197)]