85490405

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:115

約数の個数: 128

約数和(自身を含む): 154828800

約数和(自身を除く): 69338395

約数列:

[1, 5, 7, 11, 13, 19, 29, 31, 35, 55, 65, 77, 91, 95, 133, 143, 145, 155, 203, 209, 217, 247, 319, 341, 377, 385, 403, 455, 551, 589, 665, 715, 899, 1001, 1015, 1045, 1085, 1235, 1463, 1595, 1705, 1729, 1885, 2015, 2233, 2387, 2639, 2717, 2755, 2821, 2945, 3857, 4123, 4147, 4433, 4495, 5005, 6061, 6293, 6479, 7163, 7315, 7657, 8645, 9889, 11165, 11687, 11935, 13195, 13585, 14105, 17081, 19019, 19285, 20615, 20735, 22165, 29029, 30305, 31031, 31465, 32395, 35815, 38285, 42427, 45353, 49445, 50141, 53599, 58435, 69223, 78793, 81809, 84227, 85405, 95095, 119567, 128557, 145145, 155155, 187891, 212135, 222053, 226765, 250705, 267995, 346115, 393965, 409045, 421135, 551551, 589589, 597835, 642785, 899899, 939455, 1110265, 1315237, 1554371, 2442583, 2757755, 2947945, 4499495, 6576185, 7771855, 12212915, 17098081, 85490405]

約数ペア:

[(1, 85490405), (5, 17098081), (7, 12212915), (11, 7771855), (13, 6576185), (19, 4499495), (29, 2947945), (31, 2757755), (35, 2442583), (55, 1554371), (65, 1315237), (77, 1110265), (91, 939455), (95, 899899), (133, 642785), (143, 597835), (145, 589589), (155, 551551), (203, 421135), (209, 409045), (217, 393965), (247, 346115), (319, 267995), (341, 250705), (377, 226765), (385, 222053), (403, 212135), (455, 187891), (551, 155155), (589, 145145), (665, 128557), (715, 119567), (899, 95095), (1001, 85405), (1015, 84227), (1045, 81809), (1085, 78793), (1235, 69223), (1463, 58435), (1595, 53599), (1705, 50141), (1729, 49445), (1885, 45353), (2015, 42427), (2233, 38285), (2387, 35815), (2639, 32395), (2717, 31465), (2755, 31031), (2821, 30305), (2945, 29029), (3857, 22165), (4123, 20735), (4147, 20615), (4433, 19285), (4495, 19019), (5005, 17081), (6061, 14105), (6293, 13585), (6479, 13195), (7163, 11935), (7315, 11687), (7657, 11165), (8645, 9889)]