205944480

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{20431}}^1$

素因数の和:20459

約数の個数: 144

約数和(自身を含む): 803222784

約数和(自身を除く): 597278304

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 20431, 40862, 61293, 81724, 102155, 122586, 143017, 163448, 183879, 204310, 245172, 286034, 306465, 326896, 367758, 408620, 429051, 490344, 572068, 612930, 653792, 715085, 735516, 817240, 858102, 919395, 980688, 1144136, 1225860, 1287153, 1430170, 1471032, 1634480, 1716204, 1838790, 1961376, 2145255, 2288272, 2451720, 2574306, 2860340, 2942064, 3268960, 3432408, 3677580, 4290510, 4576544, 4903440, 5148612, 5720680, 5884128, 6435765, 6864816, 7355160, 8581020, 9806880, 10297224, 11441360, 12871530, 13729632, 14710320, 17162040, 20594448, 22882720, 25743060, 29420640, 34324080, 41188896, 51486120, 68648160, 102972240, 205944480]

約数ペア:

[(1, 205944480), (2, 102972240), (3, 68648160), (4, 51486120), (5, 41188896), (6, 34324080), (7, 29420640), (8, 25743060), (9, 22882720), (10, 20594448), (12, 17162040), (14, 14710320), (15, 13729632), (16, 12871530), (18, 11441360), (20, 10297224), (21, 9806880), (24, 8581020), (28, 7355160), (30, 6864816), (32, 6435765), (35, 5884128), (36, 5720680), (40, 5148612), (42, 4903440), (45, 4576544), (48, 4290510), (56, 3677580), (60, 3432408), (63, 3268960), (70, 2942064), (72, 2860340), (80, 2574306), (84, 2451720), (90, 2288272), (96, 2145255), (105, 1961376), (112, 1838790), (120, 1716204), (126, 1634480), (140, 1471032), (144, 1430170), (160, 1287153), (168, 1225860), (180, 1144136), (210, 980688), (224, 919395), (240, 858102), (252, 817240), (280, 735516), (288, 715085), (315, 653792), (336, 612930), (360, 572068), (420, 490344), (480, 429051), (504, 408620), (560, 367758), (630, 326896), (672, 306465), (720, 286034), (840, 245172), (1008, 204310), (1120, 183879), (1260, 163448), (1440, 143017), (1680, 122586), (2016, 102155), (2520, 81724), (3360, 61293), (5040, 40862), (10080, 20431)]