281322580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{16607}}^1$

素因数の和:16645

約数の個数: 72

約数和(自身を含む): 742178304

約数和(自身を除く): 460855724

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 2420, 3388, 4235, 8470, 16607, 16940, 33214, 66428, 83035, 116249, 166070, 182677, 232498, 332140, 365354, 464996, 581245, 730708, 913385, 1162490, 1278739, 1826770, 2009447, 2324980, 2557478, 3653540, 4018894, 5114956, 6393695, 8037788, 10047235, 12787390, 14066129, 20094470, 25574780, 28132258, 40188940, 56264516, 70330645, 140661290, 281322580]

約数ペア:

[(1, 281322580), (2, 140661290), (4, 70330645), (5, 56264516), (7, 40188940), (10, 28132258), (11, 25574780), (14, 20094470), (20, 14066129), (22, 12787390), (28, 10047235), (35, 8037788), (44, 6393695), (55, 5114956), (70, 4018894), (77, 3653540), (110, 2557478), (121, 2324980), (140, 2009447), (154, 1826770), (220, 1278739), (242, 1162490), (308, 913385), (385, 730708), (484, 581245), (605, 464996), (770, 365354), (847, 332140), (1210, 232498), (1540, 182677), (1694, 166070), (2420, 116249), (3388, 83035), (4235, 66428), (8470, 33214), (16607, 16940)]