19803810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:172

約数の個数: 128

約数和(自身を含む): 56609280

約数和(自身を除く): 36805470

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 29, 30, 34, 39, 51, 58, 65, 78, 85, 87, 102, 103, 130, 145, 170, 174, 195, 206, 221, 255, 290, 309, 377, 390, 435, 442, 493, 510, 515, 618, 663, 754, 870, 986, 1030, 1105, 1131, 1326, 1339, 1479, 1545, 1751, 1885, 2210, 2262, 2465, 2678, 2958, 2987, 3090, 3315, 3502, 3770, 4017, 4930, 5253, 5655, 5974, 6409, 6630, 6695, 7395, 8034, 8755, 8961, 10506, 11310, 12818, 13390, 14790, 14935, 17510, 17922, 19227, 20085, 22763, 26265, 29870, 32045, 38454, 38831, 40170, 44805, 45526, 50779, 52530, 64090, 68289, 77662, 89610, 96135, 101558, 113815, 116493, 136578, 152337, 192270, 194155, 227630, 232986, 253895, 304674, 341445, 388310, 507790, 582465, 660127, 682890, 761685, 1164930, 1320254, 1523370, 1980381, 3300635, 3960762, 6601270, 9901905, 19803810]

約数ペア:

[(1, 19803810), (2, 9901905), (3, 6601270), (5, 3960762), (6, 3300635), (10, 1980381), (13, 1523370), (15, 1320254), (17, 1164930), (26, 761685), (29, 682890), (30, 660127), (34, 582465), (39, 507790), (51, 388310), (58, 341445), (65, 304674), (78, 253895), (85, 232986), (87, 227630), (102, 194155), (103, 192270), (130, 152337), (145, 136578), (170, 116493), (174, 113815), (195, 101558), (206, 96135), (221, 89610), (255, 77662), (290, 68289), (309, 64090), (377, 52530), (390, 50779), (435, 45526), (442, 44805), (493, 40170), (510, 38831), (515, 38454), (618, 32045), (663, 29870), (754, 26265), (870, 22763), (986, 20085), (1030, 19227), (1105, 17922), (1131, 17510), (1326, 14935), (1339, 14790), (1479, 13390), (1545, 12818), (1751, 11310), (1885, 10506), (2210, 8961), (2262, 8755), (2465, 8034), (2678, 7395), (2958, 6695), (2987, 6630), (3090, 6409), (3315, 5974), (3502, 5655), (3770, 5253), (4017, 4930)]