20088180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 70761600

約数和(自身を除く): 50673420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 107, 126, 140, 149, 180, 210, 214, 252, 298, 315, 321, 420, 428, 447, 535, 596, 630, 642, 745, 749, 894, 963, 1043, 1070, 1260, 1284, 1341, 1490, 1498, 1605, 1788, 1926, 2086, 2140, 2235, 2247, 2682, 2980, 2996, 3129, 3210, 3745, 3852, 4172, 4470, 4494, 4815, 5215, 5364, 6258, 6420, 6705, 6741, 7490, 8940, 8988, 9387, 9630, 10430, 11235, 12516, 13410, 13482, 14980, 15645, 15943, 18774, 19260, 20860, 22470, 26820, 26964, 31290, 31886, 33705, 37548, 44940, 46935, 47829, 62580, 63772, 67410, 79715, 93870, 95658, 111601, 134820, 143487, 159430, 187740, 191316, 223202, 239145, 286974, 318860, 334803, 446404, 478290, 558005, 573948, 669606, 717435, 956580, 1004409, 1116010, 1339212, 1434870, 1674015, 2008818, 2232020, 2869740, 3348030, 4017636, 5022045, 6696060, 10044090, 20088180]

約数ペア:

[(1, 20088180), (2, 10044090), (3, 6696060), (4, 5022045), (5, 4017636), (6, 3348030), (7, 2869740), (9, 2232020), (10, 2008818), (12, 1674015), (14, 1434870), (15, 1339212), (18, 1116010), (20, 1004409), (21, 956580), (28, 717435), (30, 669606), (35, 573948), (36, 558005), (42, 478290), (45, 446404), (60, 334803), (63, 318860), (70, 286974), (84, 239145), (90, 223202), (105, 191316), (107, 187740), (126, 159430), (140, 143487), (149, 134820), (180, 111601), (210, 95658), (214, 93870), (252, 79715), (298, 67410), (315, 63772), (321, 62580), (420, 47829), (428, 46935), (447, 44940), (535, 37548), (596, 33705), (630, 31886), (642, 31290), (745, 26964), (749, 26820), (894, 22470), (963, 20860), (1043, 19260), (1070, 18774), (1260, 15943), (1284, 15645), (1341, 14980), (1490, 13482), (1498, 13410), (1605, 12516), (1788, 11235), (1926, 10430), (2086, 9630), (2140, 9387), (2235, 8988), (2247, 8940), (2682, 7490), (2980, 6741), (2996, 6705), (3129, 6420), (3210, 6258), (3745, 5364), (3852, 5215), (4172, 4815), (4470, 4494)]