2580500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 6084624

約数和(自身を除く): 3504124

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 397, 500, 650, 794, 1300, 1588, 1625, 1985, 3250, 3970, 5161, 6500, 7940, 9925, 10322, 19850, 20644, 25805, 39700, 49625, 51610, 99250, 103220, 129025, 198500, 258050, 516100, 645125, 1290250, 2580500]

約数ペア:

[(1, 2580500), (2, 1290250), (4, 645125), (5, 516100), (10, 258050), (13, 198500), (20, 129025), (25, 103220), (26, 99250), (50, 51610), (52, 49625), (65, 39700), (100, 25805), (125, 20644), (130, 19850), (250, 10322), (260, 9925), (325, 7940), (397, 6500), (500, 5161), (650, 3970), (794, 3250), (1300, 1985), (1588, 1625)]