289196620

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{2503}}^1$

素因数の和:2674

約数の個数: 48

約数和(自身を含む): 624697920

約数和(自身を除く): 335501300

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 109, 212, 218, 265, 436, 530, 545, 1060, 1090, 2180, 2503, 5006, 5777, 10012, 11554, 12515, 23108, 25030, 28885, 50060, 57770, 115540, 132659, 265318, 272827, 530636, 545654, 663295, 1091308, 1326590, 1364135, 2653180, 2728270, 5456540, 14459831, 28919662, 57839324, 72299155, 144598310, 289196620]

約数ペア:

[(1, 289196620), (2, 144598310), (4, 72299155), (5, 57839324), (10, 28919662), (20, 14459831), (53, 5456540), (106, 2728270), (109, 2653180), (212, 1364135), (218, 1326590), (265, 1091308), (436, 663295), (530, 545654), (545, 530636), (1060, 272827), (1090, 265318), (2180, 132659), (2503, 115540), (5006, 57770), (5777, 50060), (10012, 28885), (11554, 25030), (12515, 23108)]