1815148940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{135257}}^1$

素因数の和:135338

約数の個数: 48

約数和(自身を含む): 4226541984

約数和(自身を除く): 2411393044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710, 13420, 135257, 270514, 541028, 676285, 1352570, 1487827, 2705140, 2975654, 5951308, 7439135, 8250677, 14878270, 16501354, 29756540, 33002708, 41253385, 82506770, 90757447, 165013540, 181514894, 363029788, 453787235, 907574470, 1815148940]

約数ペア:

[(1, 1815148940), (2, 907574470), (4, 453787235), (5, 363029788), (10, 181514894), (11, 165013540), (20, 90757447), (22, 82506770), (44, 41253385), (55, 33002708), (61, 29756540), (110, 16501354), (122, 14878270), (220, 8250677), (244, 7439135), (305, 5951308), (610, 2975654), (671, 2705140), (1220, 1487827), (1342, 1352570), (2684, 676285), (3355, 541028), (6710, 270514), (13420, 135257)]