28116400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5407}}^1$

素因数の和:5438

約数の個数: 60

約数和(自身を含む): 72759232

約数和(自身を除く): 44642832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 5407, 10814, 21628, 27035, 43256, 54070, 70291, 86512, 108140, 135175, 140582, 216280, 270350, 281164, 351455, 432560, 540700, 562328, 702910, 1081400, 1124656, 1405820, 1757275, 2162800, 2811640, 3514550, 5623280, 7029100, 14058200, 28116400]

約数ペア:

[(1, 28116400), (2, 14058200), (4, 7029100), (5, 5623280), (8, 3514550), (10, 2811640), (13, 2162800), (16, 1757275), (20, 1405820), (25, 1124656), (26, 1081400), (40, 702910), (50, 562328), (52, 540700), (65, 432560), (80, 351455), (100, 281164), (104, 270350), (130, 216280), (200, 140582), (208, 135175), (260, 108140), (325, 86512), (400, 70291), (520, 54070), (650, 43256), (1040, 27035), (1300, 21628), (2600, 10814), (5200, 5407)]