20386800

素因数分解:

$2^4\times 3^2\times 5^2\times 7^1\times {\mathrm{809}}^1$

素因数の和:840

約数の個数: 180

約数和(自身を含む): 80954640

約数和(自身を除く): 60567840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 100, 105, 112, 120, 126, 140, 144, 150, 168, 175, 180, 200, 210, 225, 240, 252, 280, 300, 315, 336, 350, 360, 400, 420, 450, 504, 525, 560, 600, 630, 700, 720, 809, 840, 900, 1008, 1050, 1200, 1260, 1400, 1575, 1618, 1680, 1800, 2100, 2427, 2520, 2800, 3150, 3236, 3600, 4045, 4200, 4854, 5040, 5663, 6300, 6472, 7281, 8090, 8400, 9708, 11326, 12135, 12600, 12944, 14562, 16180, 16989, 19416, 20225, 22652, 24270, 25200, 28315, 29124, 32360, 33978, 36405, 38832, 40450, 45304, 48540, 50967, 56630, 58248, 60675, 64720, 67956, 72810, 80900, 84945, 90608, 97080, 101934, 113260, 116496, 121350, 135912, 141575, 145620, 161800, 169890, 182025, 194160, 203868, 226520, 242700, 254835, 271824, 283150, 291240, 323600, 339780, 364050, 407736, 424725, 453040, 485400, 509670, 566300, 582480, 679560, 728100, 815472, 849450, 970800, 1019340, 1132600, 1274175, 1359120, 1456200, 1698900, 2038680, 2265200, 2548350, 2912400, 3397800, 4077360, 5096700, 6795600, 10193400, 20386800]

約数ペア:

[(1, 20386800), (2, 10193400), (3, 6795600), (4, 5096700), (5, 4077360), (6, 3397800), (7, 2912400), (8, 2548350), (9, 2265200), (10, 2038680), (12, 1698900), (14, 1456200), (15, 1359120), (16, 1274175), (18, 1132600), (20, 1019340), (21, 970800), (24, 849450), (25, 815472), (28, 728100), (30, 679560), (35, 582480), (36, 566300), (40, 509670), (42, 485400), (45, 453040), (48, 424725), (50, 407736), (56, 364050), (60, 339780), (63, 323600), (70, 291240), (72, 283150), (75, 271824), (80, 254835), (84, 242700), (90, 226520), (100, 203868), (105, 194160), (112, 182025), (120, 169890), (126, 161800), (140, 145620), (144, 141575), (150, 135912), (168, 121350), (175, 116496), (180, 113260), (200, 101934), (210, 97080), (225, 90608), (240, 84945), (252, 80900), (280, 72810), (300, 67956), (315, 64720), (336, 60675), (350, 58248), (360, 56630), (400, 50967), (420, 48540), (450, 45304), (504, 40450), (525, 38832), (560, 36405), (600, 33978), (630, 32360), (700, 29124), (720, 28315), (809, 25200), (840, 24270), (900, 22652), (1008, 20225), (1050, 19416), (1200, 16989), (1260, 16180), (1400, 14562), (1575, 12944), (1618, 12600), (1680, 12135), (1800, 11326), (2100, 9708), (2427, 8400), (2520, 8090), (2800, 7281), (3150, 6472), (3236, 6300), (3600, 5663), (4045, 5040), (4200, 4854)]