81545535

素因数分解:

$3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 80

約数和(自身を含む): 155247840

約数和(自身を除く): 73702305

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 53, 81, 87, 131, 135, 145, 159, 261, 265, 393, 405, 435, 477, 655, 783, 795, 1179, 1305, 1431, 1537, 1965, 2349, 2385, 3537, 3799, 3915, 4293, 4611, 5895, 6943, 7155, 7685, 10611, 11397, 11745, 13833, 17685, 18995, 20829, 21465, 23055, 34191, 34715, 41499, 53055, 56985, 62487, 69165, 102573, 104145, 124497, 170955, 187461, 201347, 207495, 307719, 312435, 512865, 562383, 604041, 622485, 937305, 1006735, 1538595, 1812123, 2811915, 3020205, 5436369, 9060615, 16309107, 27181845, 81545535]

約数ペア:

[(1, 81545535), (3, 27181845), (5, 16309107), (9, 9060615), (15, 5436369), (27, 3020205), (29, 2811915), (45, 1812123), (53, 1538595), (81, 1006735), (87, 937305), (131, 622485), (135, 604041), (145, 562383), (159, 512865), (261, 312435), (265, 307719), (393, 207495), (405, 201347), (435, 187461), (477, 170955), (655, 124497), (783, 104145), (795, 102573), (1179, 69165), (1305, 62487), (1431, 56985), (1537, 53055), (1965, 41499), (2349, 34715), (2385, 34191), (3537, 23055), (3799, 21465), (3915, 20829), (4293, 18995), (4611, 17685), (5895, 13833), (6943, 11745), (7155, 11397), (7685, 10611)]