20027835

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 36504000

約数和(自身を除く): 16476165

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 103, 145, 149, 261, 309, 435, 447, 515, 745, 927, 1305, 1341, 1545, 2235, 2987, 4321, 4635, 6705, 8961, 12963, 14935, 15347, 21605, 26883, 38889, 44805, 46041, 64815, 76735, 134415, 138123, 194445, 230205, 445063, 690615, 1335189, 2225315, 4005567, 6675945, 20027835]

約数ペア:

[(1, 20027835), (3, 6675945), (5, 4005567), (9, 2225315), (15, 1335189), (29, 690615), (45, 445063), (87, 230205), (103, 194445), (145, 138123), (149, 134415), (261, 76735), (309, 64815), (435, 46041), (447, 44805), (515, 38889), (745, 26883), (927, 21605), (1305, 15347), (1341, 14935), (1545, 12963), (2235, 8961), (2987, 6705), (4321, 4635)]