18664980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{631}}^1$

素因数の和:689

約数の個数: 96

約数和(自身を含む): 57335040

約数和(自身を除く): 38670060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 29, 30, 34, 51, 58, 60, 68, 85, 87, 102, 116, 145, 170, 174, 204, 255, 290, 340, 348, 435, 493, 510, 580, 631, 870, 986, 1020, 1262, 1479, 1740, 1893, 1972, 2465, 2524, 2958, 3155, 3786, 4930, 5916, 6310, 7395, 7572, 9465, 9860, 10727, 12620, 14790, 18299, 18930, 21454, 29580, 32181, 36598, 37860, 42908, 53635, 54897, 64362, 73196, 91495, 107270, 109794, 128724, 160905, 182990, 214540, 219588, 274485, 311083, 321810, 365980, 548970, 622166, 643620, 933249, 1097940, 1244332, 1555415, 1866498, 3110830, 3732996, 4666245, 6221660, 9332490, 18664980]

約数ペア:

[(1, 18664980), (2, 9332490), (3, 6221660), (4, 4666245), (5, 3732996), (6, 3110830), (10, 1866498), (12, 1555415), (15, 1244332), (17, 1097940), (20, 933249), (29, 643620), (30, 622166), (34, 548970), (51, 365980), (58, 321810), (60, 311083), (68, 274485), (85, 219588), (87, 214540), (102, 182990), (116, 160905), (145, 128724), (170, 109794), (174, 107270), (204, 91495), (255, 73196), (290, 64362), (340, 54897), (348, 53635), (435, 42908), (493, 37860), (510, 36598), (580, 32181), (631, 29580), (870, 21454), (986, 18930), (1020, 18299), (1262, 14790), (1479, 12620), (1740, 10727), (1893, 9860), (1972, 9465), (2465, 7572), (2524, 7395), (2958, 6310), (3155, 5916), (3786, 4930)]