261430680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:458

約数の個数: 192

約数和(自身を含む): 921183840

約数和(自身を除く): 659753160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 173, 196, 210, 245, 257, 280, 294, 346, 392, 420, 490, 514, 519, 588, 692, 735, 771, 840, 865, 980, 1028, 1038, 1176, 1211, 1285, 1384, 1470, 1542, 1730, 1799, 1960, 2056, 2076, 2422, 2570, 2595, 2940, 3084, 3460, 3598, 3633, 3855, 4152, 4844, 5140, 5190, 5397, 5880, 6055, 6168, 6920, 7196, 7266, 7710, 8477, 8995, 9688, 10280, 10380, 10794, 12110, 12593, 14392, 14532, 15420, 16954, 17990, 18165, 20760, 21588, 24220, 25186, 25431, 26985, 29064, 30840, 33908, 35980, 36330, 37779, 42385, 43176, 44461, 48440, 50372, 50862, 53970, 62965, 67816, 71960, 72660, 75558, 84770, 88922, 100744, 101724, 107940, 125930, 127155, 133383, 145320, 151116, 169540, 177844, 188895, 203448, 215880, 222305, 251860, 254310, 266766, 302232, 311227, 339080, 355688, 377790, 444610, 503720, 508620, 533532, 622454, 666915, 755580, 889220, 933681, 1017240, 1067064, 1244908, 1333830, 1511160, 1556135, 1778440, 1867362, 2178589, 2489816, 2667660, 3112270, 3734724, 4357178, 4668405, 5335320, 6224540, 6535767, 7469448, 8714356, 9336810, 10892945, 12449080, 13071534, 17428712, 18673620, 21785890, 26143068, 32678835, 37347240, 43571780, 52286136, 65357670, 87143560, 130715340, 261430680]

約数ペア:

[(1, 261430680), (2, 130715340), (3, 87143560), (4, 65357670), (5, 52286136), (6, 43571780), (7, 37347240), (8, 32678835), (10, 26143068), (12, 21785890), (14, 18673620), (15, 17428712), (20, 13071534), (21, 12449080), (24, 10892945), (28, 9336810), (30, 8714356), (35, 7469448), (40, 6535767), (42, 6224540), (49, 5335320), (56, 4668405), (60, 4357178), (70, 3734724), (84, 3112270), (98, 2667660), (105, 2489816), (120, 2178589), (140, 1867362), (147, 1778440), (168, 1556135), (173, 1511160), (196, 1333830), (210, 1244908), (245, 1067064), (257, 1017240), (280, 933681), (294, 889220), (346, 755580), (392, 666915), (420, 622454), (490, 533532), (514, 508620), (519, 503720), (588, 444610), (692, 377790), (735, 355688), (771, 339080), (840, 311227), (865, 302232), (980, 266766), (1028, 254310), (1038, 251860), (1176, 222305), (1211, 215880), (1285, 203448), (1384, 188895), (1470, 177844), (1542, 169540), (1730, 151116), (1799, 145320), (1960, 133383), (2056, 127155), (2076, 125930), (2422, 107940), (2570, 101724), (2595, 100744), (2940, 88922), (3084, 84770), (3460, 75558), (3598, 72660), (3633, 71960), (3855, 67816), (4152, 62965), (4844, 53970), (5140, 50862), (5190, 50372), (5397, 48440), (5880, 44461), (6055, 43176), (6168, 42385), (6920, 37779), (7196, 36330), (7266, 35980), (7710, 33908), (8477, 30840), (8995, 29064), (9688, 26985), (10280, 25431), (10380, 25186), (10794, 24220), (12110, 21588), (12593, 20760), (14392, 18165), (14532, 17990), (15420, 16954)]