78280425

素因数分解:

$3^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:125

約数の個数: 120

約数和(自身を含む): 158442240

約数和(自身を除く): 80161815

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 31, 43, 45, 75, 81, 87, 93, 129, 135, 145, 155, 215, 225, 261, 279, 387, 405, 435, 465, 645, 675, 725, 775, 783, 837, 899, 1075, 1161, 1247, 1305, 1333, 1395, 1935, 2025, 2175, 2325, 2349, 2511, 2697, 3225, 3483, 3741, 3915, 3999, 4185, 4495, 5805, 6235, 6525, 6665, 6975, 8091, 9675, 11223, 11745, 11997, 12555, 13485, 17415, 18705, 19575, 19995, 20925, 22475, 24273, 29025, 31175, 33325, 33669, 35991, 38657, 40455, 56115, 58725, 59985, 62775, 67425, 72819, 87075, 93525, 99975, 101007, 107973, 115971, 121365, 168345, 179955, 193285, 202275, 280575, 299925, 347913, 364095, 505035, 539865, 579855, 606825, 841725, 899775, 966425, 1043739, 1739565, 1820475, 2525175, 2699325, 2899275, 3131217, 5218695, 8697825, 15656085, 26093475, 78280425]

約数ペア:

[(1, 78280425), (3, 26093475), (5, 15656085), (9, 8697825), (15, 5218695), (25, 3131217), (27, 2899275), (29, 2699325), (31, 2525175), (43, 1820475), (45, 1739565), (75, 1043739), (81, 966425), (87, 899775), (93, 841725), (129, 606825), (135, 579855), (145, 539865), (155, 505035), (215, 364095), (225, 347913), (261, 299925), (279, 280575), (387, 202275), (405, 193285), (435, 179955), (465, 168345), (645, 121365), (675, 115971), (725, 107973), (775, 101007), (783, 99975), (837, 93525), (899, 87075), (1075, 72819), (1161, 67425), (1247, 62775), (1305, 59985), (1333, 58725), (1395, 56115), (1935, 40455), (2025, 38657), (2175, 35991), (2325, 33669), (2349, 33325), (2511, 31175), (2697, 29025), (3225, 24273), (3483, 22475), (3741, 20925), (3915, 19995), (3999, 19575), (4185, 18705), (4495, 17415), (5805, 13485), (6235, 12555), (6525, 11997), (6665, 11745), (6975, 11223), (8091, 9675)]