209931120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1811}}^1$

素因数の和:1860

約数の個数: 240

約数和(自身を含む): 841231872

約数和(自身を除く): 631300752

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 48, 56, 60, 63, 69, 70, 72, 80, 84, 90, 92, 105, 112, 115, 120, 126, 138, 140, 144, 161, 168, 180, 184, 207, 210, 230, 240, 252, 276, 280, 315, 322, 336, 345, 360, 368, 414, 420, 460, 483, 504, 552, 560, 630, 644, 690, 720, 805, 828, 840, 920, 966, 1008, 1035, 1104, 1260, 1288, 1380, 1449, 1610, 1656, 1680, 1811, 1840, 1932, 2070, 2415, 2520, 2576, 2760, 2898, 3220, 3312, 3622, 3864, 4140, 4830, 5040, 5433, 5520, 5796, 6440, 7244, 7245, 7728, 8280, 9055, 9660, 10866, 11592, 12677, 12880, 14488, 14490, 16299, 16560, 18110, 19320, 21732, 23184, 25354, 27165, 28976, 28980, 32598, 36220, 38031, 38640, 41653, 43464, 50708, 54330, 57960, 63385, 65196, 72440, 76062, 81495, 83306, 86928, 101416, 108660, 114093, 115920, 124959, 126770, 130392, 144880, 152124, 162990, 166612, 190155, 202832, 208265, 217320, 228186, 249918, 253540, 260784, 291571, 304248, 325980, 333224, 374877, 380310, 416530, 434640, 456372, 499836, 507080, 570465, 583142, 608496, 624795, 651960, 666448, 749754, 760620, 833060, 874713, 912744, 999672, 1014160, 1140930, 1166284, 1249590, 1303920, 1457855, 1499508, 1521240, 1666120, 1749426, 1825488, 1874385, 1999344, 2281860, 2332568, 2499180, 2624139, 2915710, 2999016, 3042480, 3332240, 3498852, 3748770, 4373565, 4563720, 4665136, 4998360, 5248278, 5831420, 5998032, 6997704, 7497540, 8747130, 9127440, 9996720, 10496556, 11662840, 13120695, 13995408, 14995080, 17494260, 20993112, 23325680, 26241390, 29990160, 34988520, 41986224, 52482780, 69977040, 104965560, 209931120]

約数ペア:

[(1, 209931120), (2, 104965560), (3, 69977040), (4, 52482780), (5, 41986224), (6, 34988520), (7, 29990160), (8, 26241390), (9, 23325680), (10, 20993112), (12, 17494260), (14, 14995080), (15, 13995408), (16, 13120695), (18, 11662840), (20, 10496556), (21, 9996720), (23, 9127440), (24, 8747130), (28, 7497540), (30, 6997704), (35, 5998032), (36, 5831420), (40, 5248278), (42, 4998360), (45, 4665136), (46, 4563720), (48, 4373565), (56, 3748770), (60, 3498852), (63, 3332240), (69, 3042480), (70, 2999016), (72, 2915710), (80, 2624139), (84, 2499180), (90, 2332568), (92, 2281860), (105, 1999344), (112, 1874385), (115, 1825488), (120, 1749426), (126, 1666120), (138, 1521240), (140, 1499508), (144, 1457855), (161, 1303920), (168, 1249590), (180, 1166284), (184, 1140930), (207, 1014160), (210, 999672), (230, 912744), (240, 874713), (252, 833060), (276, 760620), (280, 749754), (315, 666448), (322, 651960), (336, 624795), (345, 608496), (360, 583142), (368, 570465), (414, 507080), (420, 499836), (460, 456372), (483, 434640), (504, 416530), (552, 380310), (560, 374877), (630, 333224), (644, 325980), (690, 304248), (720, 291571), (805, 260784), (828, 253540), (840, 249918), (920, 228186), (966, 217320), (1008, 208265), (1035, 202832), (1104, 190155), (1260, 166612), (1288, 162990), (1380, 152124), (1449, 144880), (1610, 130392), (1656, 126770), (1680, 124959), (1811, 115920), (1840, 114093), (1932, 108660), (2070, 101416), (2415, 86928), (2520, 83306), (2576, 81495), (2760, 76062), (2898, 72440), (3220, 65196), (3312, 63385), (3622, 57960), (3864, 54330), (4140, 50708), (4830, 43464), (5040, 41653), (5433, 38640), (5520, 38031), (5796, 36220), (6440, 32598), (7244, 28980), (7245, 28976), (7728, 27165), (8280, 25354), (9055, 23184), (9660, 21732), (10866, 19320), (11592, 18110), (12677, 16560), (12880, 16299), (14488, 14490)]