131591240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 339811200

約数和(自身を除く): 208219960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 59, 74, 88, 110, 118, 137, 148, 185, 220, 236, 274, 295, 296, 370, 407, 440, 472, 548, 590, 649, 685, 740, 814, 1096, 1180, 1298, 1370, 1480, 1507, 1628, 2035, 2183, 2360, 2596, 2740, 3014, 3245, 3256, 4070, 4366, 5069, 5192, 5480, 6028, 6490, 7535, 8083, 8140, 8732, 10138, 10915, 12056, 12980, 15070, 16166, 16280, 17464, 20276, 21830, 24013, 25345, 25960, 30140, 32332, 40415, 40552, 43660, 48026, 50690, 55759, 60280, 64664, 80830, 87320, 88913, 96052, 101380, 111518, 120065, 161660, 177826, 192104, 202760, 223036, 240130, 278795, 299071, 323320, 355652, 444565, 446072, 480260, 557590, 598142, 711304, 889130, 960520, 1115180, 1196284, 1495355, 1778260, 2230360, 2392568, 2990710, 3289781, 3556520, 5981420, 6579562, 11962840, 13159124, 16448905, 26318248, 32897810, 65795620, 131591240]

約数ペア:

[(1, 131591240), (2, 65795620), (4, 32897810), (5, 26318248), (8, 16448905), (10, 13159124), (11, 11962840), (20, 6579562), (22, 5981420), (37, 3556520), (40, 3289781), (44, 2990710), (55, 2392568), (59, 2230360), (74, 1778260), (88, 1495355), (110, 1196284), (118, 1115180), (137, 960520), (148, 889130), (185, 711304), (220, 598142), (236, 557590), (274, 480260), (295, 446072), (296, 444565), (370, 355652), (407, 323320), (440, 299071), (472, 278795), (548, 240130), (590, 223036), (649, 202760), (685, 192104), (740, 177826), (814, 161660), (1096, 120065), (1180, 111518), (1298, 101380), (1370, 96052), (1480, 88913), (1507, 87320), (1628, 80830), (2035, 64664), (2183, 60280), (2360, 55759), (2596, 50690), (2740, 48026), (3014, 43660), (3245, 40552), (3256, 40415), (4070, 32332), (4366, 30140), (5069, 25960), (5192, 25345), (5480, 24013), (6028, 21830), (6490, 20276), (7535, 17464), (8083, 16280), (8140, 16166), (8732, 15070), (10138, 12980), (10915, 12056)]