20534470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 23011130

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 79, 85, 110, 139, 158, 170, 187, 278, 374, 395, 695, 790, 869, 935, 1343, 1390, 1529, 1738, 1870, 2363, 2686, 3058, 4345, 4726, 6715, 7645, 8690, 10981, 11815, 13430, 14773, 15290, 21962, 23630, 25993, 29546, 51986, 54905, 73865, 109810, 120791, 129965, 147730, 186677, 241582, 259930, 373354, 603955, 933385, 1207910, 1866770, 2053447, 4106894, 10267235, 20534470]

約数ペア:

[(1, 20534470), (2, 10267235), (5, 4106894), (10, 2053447), (11, 1866770), (17, 1207910), (22, 933385), (34, 603955), (55, 373354), (79, 259930), (85, 241582), (110, 186677), (139, 147730), (158, 129965), (170, 120791), (187, 109810), (278, 73865), (374, 54905), (395, 51986), (695, 29546), (790, 25993), (869, 23630), (935, 21962), (1343, 15290), (1390, 14773), (1529, 13430), (1738, 11815), (1870, 10981), (2363, 8690), (2686, 7645), (3058, 6715), (4345, 4726)]