338900980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{7741}}^1$

素因数の和:7960

約数の個数: 48

約数和(自身を含む): 780393600

約数和(自身を除く): 441492620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 199, 220, 398, 796, 995, 1990, 2189, 3980, 4378, 7741, 8756, 10945, 15482, 21890, 30964, 38705, 43780, 77410, 85151, 154820, 170302, 340604, 425755, 851510, 1540459, 1703020, 3080918, 6161836, 7702295, 15404590, 16945049, 30809180, 33890098, 67780196, 84725245, 169450490, 338900980]

約数ペア:

[(1, 338900980), (2, 169450490), (4, 84725245), (5, 67780196), (10, 33890098), (11, 30809180), (20, 16945049), (22, 15404590), (44, 7702295), (55, 6161836), (110, 3080918), (199, 1703020), (220, 1540459), (398, 851510), (796, 425755), (995, 340604), (1990, 170302), (2189, 154820), (3980, 85151), (4378, 77410), (7741, 43780), (8756, 38705), (10945, 30964), (15482, 21890)]