19278765

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 40435200

約数和(自身を除く): 21156435

約数列:

[1, 3, 5, 9, 11, 15, 17, 29, 33, 45, 51, 55, 79, 85, 87, 99, 145, 153, 165, 187, 237, 255, 261, 319, 395, 435, 493, 495, 561, 711, 765, 869, 935, 957, 1185, 1305, 1343, 1479, 1595, 1683, 2291, 2465, 2607, 2805, 2871, 3555, 4029, 4345, 4437, 4785, 5423, 6715, 6873, 7395, 7821, 8415, 11455, 12087, 13035, 14355, 14773, 16269, 20145, 20619, 22185, 25201, 27115, 34365, 38947, 39105, 44319, 48807, 60435, 73865, 75603, 81345, 103095, 116841, 126005, 132957, 194735, 221595, 226809, 244035, 350523, 378015, 428417, 584205, 664785, 1134045, 1285251, 1752615, 2142085, 3855753, 6426255, 19278765]

約数ペア:

[(1, 19278765), (3, 6426255), (5, 3855753), (9, 2142085), (11, 1752615), (15, 1285251), (17, 1134045), (29, 664785), (33, 584205), (45, 428417), (51, 378015), (55, 350523), (79, 244035), (85, 226809), (87, 221595), (99, 194735), (145, 132957), (153, 126005), (165, 116841), (187, 103095), (237, 81345), (255, 75603), (261, 73865), (319, 60435), (395, 48807), (435, 44319), (493, 39105), (495, 38947), (561, 34365), (711, 27115), (765, 25201), (869, 22185), (935, 20619), (957, 20145), (1185, 16269), (1305, 14773), (1343, 14355), (1479, 13035), (1595, 12087), (1683, 11455), (2291, 8415), (2465, 7821), (2607, 7395), (2805, 6873), (2871, 6715), (3555, 5423), (4029, 4785), (4345, 4437)]