18020940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:527

約数の個数: 96

約数和(自身を含む): 58351104

約数和(自身を除く): 40330164

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 107, 140, 210, 214, 321, 401, 420, 428, 535, 642, 749, 802, 1070, 1203, 1284, 1498, 1604, 1605, 2005, 2140, 2247, 2406, 2807, 2996, 3210, 3745, 4010, 4494, 4812, 5614, 6015, 6420, 7490, 8020, 8421, 8988, 11228, 11235, 12030, 14035, 14980, 16842, 22470, 24060, 28070, 33684, 42105, 42907, 44940, 56140, 84210, 85814, 128721, 168420, 171628, 214535, 257442, 300349, 429070, 514884, 600698, 643605, 858140, 901047, 1201396, 1287210, 1501745, 1802094, 2574420, 3003490, 3604188, 4505235, 6006980, 9010470, 18020940]

約数ペア:

[(1, 18020940), (2, 9010470), (3, 6006980), (4, 4505235), (5, 3604188), (6, 3003490), (7, 2574420), (10, 1802094), (12, 1501745), (14, 1287210), (15, 1201396), (20, 901047), (21, 858140), (28, 643605), (30, 600698), (35, 514884), (42, 429070), (60, 300349), (70, 257442), (84, 214535), (105, 171628), (107, 168420), (140, 128721), (210, 85814), (214, 84210), (321, 56140), (401, 44940), (420, 42907), (428, 42105), (535, 33684), (642, 28070), (749, 24060), (802, 22470), (1070, 16842), (1203, 14980), (1284, 14035), (1498, 12030), (1604, 11235), (1605, 11228), (2005, 8988), (2140, 8421), (2247, 8020), (2406, 7490), (2807, 6420), (2996, 6015), (3210, 5614), (3745, 4812), (4010, 4494)]