218690640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{43391}}^1$

素因数の和:43417

約数の個数: 120

約数和(自身を含む): 839374848

約数和(自身を除く): 620684208

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 43391, 86782, 130173, 173564, 216955, 260346, 303737, 347128, 390519, 433910, 520692, 607474, 650865, 694256, 781038, 867820, 911211, 1041384, 1214948, 1301730, 1518685, 1562076, 1735640, 1822422, 1952595, 2082768, 2429896, 2603460, 2733633, 3037370, 3124152, 3471280, 3644844, 3905190, 4556055, 4859792, 5206920, 5467266, 6074740, 6248304, 7289688, 7810380, 9112110, 10413840, 10934532, 12149480, 13668165, 14579376, 15620760, 18224220, 21869064, 24298960, 27336330, 31241520, 36448440, 43738128, 54672660, 72896880, 109345320, 218690640]

約数ペア:

[(1, 218690640), (2, 109345320), (3, 72896880), (4, 54672660), (5, 43738128), (6, 36448440), (7, 31241520), (8, 27336330), (9, 24298960), (10, 21869064), (12, 18224220), (14, 15620760), (15, 14579376), (16, 13668165), (18, 12149480), (20, 10934532), (21, 10413840), (24, 9112110), (28, 7810380), (30, 7289688), (35, 6248304), (36, 6074740), (40, 5467266), (42, 5206920), (45, 4859792), (48, 4556055), (56, 3905190), (60, 3644844), (63, 3471280), (70, 3124152), (72, 3037370), (80, 2733633), (84, 2603460), (90, 2429896), (105, 2082768), (112, 1952595), (120, 1822422), (126, 1735640), (140, 1562076), (144, 1518685), (168, 1301730), (180, 1214948), (210, 1041384), (240, 911211), (252, 867820), (280, 781038), (315, 694256), (336, 650865), (360, 607474), (420, 520692), (504, 433910), (560, 390519), (630, 347128), (720, 303737), (840, 260346), (1008, 216955), (1260, 173564), (1680, 130173), (2520, 86782), (5040, 43391)]