81541680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:555

約数の個数: 160

約数和(自身を含む): 280482048

約数和(自身を除く): 198940368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 67, 80, 88, 110, 120, 132, 134, 165, 176, 201, 220, 240, 264, 268, 330, 335, 402, 440, 461, 528, 536, 660, 670, 737, 804, 880, 922, 1005, 1072, 1320, 1340, 1383, 1474, 1608, 1844, 2010, 2211, 2305, 2640, 2680, 2766, 2948, 3216, 3685, 3688, 4020, 4422, 4610, 5071, 5360, 5532, 5896, 6915, 7370, 7376, 8040, 8844, 9220, 10142, 11055, 11064, 11792, 13830, 14740, 15213, 16080, 17688, 18440, 20284, 22110, 22128, 25355, 27660, 29480, 30426, 30887, 35376, 36880, 40568, 44220, 50710, 55320, 58960, 60852, 61774, 76065, 81136, 88440, 92661, 101420, 110640, 121704, 123548, 152130, 154435, 176880, 185322, 202840, 243408, 247096, 304260, 308870, 339757, 370644, 405680, 463305, 494192, 608520, 617740, 679514, 741288, 926610, 1019271, 1217040, 1235480, 1359028, 1482576, 1698785, 1853220, 2038542, 2470960, 2718056, 3397570, 3706440, 4077084, 5096355, 5436112, 6795140, 7412880, 8154168, 10192710, 13590280, 16308336, 20385420, 27180560, 40770840, 81541680]

約数ペア:

[(1, 81541680), (2, 40770840), (3, 27180560), (4, 20385420), (5, 16308336), (6, 13590280), (8, 10192710), (10, 8154168), (11, 7412880), (12, 6795140), (15, 5436112), (16, 5096355), (20, 4077084), (22, 3706440), (24, 3397570), (30, 2718056), (33, 2470960), (40, 2038542), (44, 1853220), (48, 1698785), (55, 1482576), (60, 1359028), (66, 1235480), (67, 1217040), (80, 1019271), (88, 926610), (110, 741288), (120, 679514), (132, 617740), (134, 608520), (165, 494192), (176, 463305), (201, 405680), (220, 370644), (240, 339757), (264, 308870), (268, 304260), (330, 247096), (335, 243408), (402, 202840), (440, 185322), (461, 176880), (528, 154435), (536, 152130), (660, 123548), (670, 121704), (737, 110640), (804, 101420), (880, 92661), (922, 88440), (1005, 81136), (1072, 76065), (1320, 61774), (1340, 60852), (1383, 58960), (1474, 55320), (1608, 50710), (1844, 44220), (2010, 40568), (2211, 36880), (2305, 35376), (2640, 30887), (2680, 30426), (2766, 29480), (2948, 27660), (3216, 25355), (3685, 22128), (3688, 22110), (4020, 20284), (4422, 18440), (4610, 17688), (5071, 16080), (5360, 15213), (5532, 14740), (5896, 13830), (6915, 11792), (7370, 11064), (7376, 11055), (8040, 10142), (8844, 9220)]