18836640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 144

約数和(自身を含む): 65415168

約数和(自身を除く): 46578528

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 103, 120, 127, 144, 160, 180, 206, 240, 254, 288, 309, 360, 381, 412, 480, 508, 515, 618, 635, 720, 762, 824, 927, 1016, 1030, 1143, 1236, 1270, 1440, 1524, 1545, 1648, 1854, 1905, 2032, 2060, 2286, 2472, 2540, 3048, 3090, 3296, 3708, 3810, 4064, 4120, 4572, 4635, 4944, 5080, 5715, 6096, 6180, 7416, 7620, 8240, 9144, 9270, 9888, 10160, 11430, 12192, 12360, 13081, 14832, 15240, 16480, 18288, 18540, 20320, 22860, 24720, 26162, 29664, 30480, 36576, 37080, 39243, 45720, 49440, 52324, 60960, 65405, 74160, 78486, 91440, 104648, 117729, 130810, 148320, 156972, 182880, 196215, 209296, 235458, 261620, 313944, 392430, 418592, 470916, 523240, 588645, 627888, 784860, 941832, 1046480, 1177290, 1255776, 1569720, 1883664, 2092960, 2354580, 3139440, 3767328, 4709160, 6278880, 9418320, 18836640]

約数ペア:

[(1, 18836640), (2, 9418320), (3, 6278880), (4, 4709160), (5, 3767328), (6, 3139440), (8, 2354580), (9, 2092960), (10, 1883664), (12, 1569720), (15, 1255776), (16, 1177290), (18, 1046480), (20, 941832), (24, 784860), (30, 627888), (32, 588645), (36, 523240), (40, 470916), (45, 418592), (48, 392430), (60, 313944), (72, 261620), (80, 235458), (90, 209296), (96, 196215), (103, 182880), (120, 156972), (127, 148320), (144, 130810), (160, 117729), (180, 104648), (206, 91440), (240, 78486), (254, 74160), (288, 65405), (309, 60960), (360, 52324), (381, 49440), (412, 45720), (480, 39243), (508, 37080), (515, 36576), (618, 30480), (635, 29664), (720, 26162), (762, 24720), (824, 22860), (927, 20320), (1016, 18540), (1030, 18288), (1143, 16480), (1236, 15240), (1270, 14832), (1440, 13081), (1524, 12360), (1545, 12192), (1648, 11430), (1854, 10160), (1905, 9888), (2032, 9270), (2060, 9144), (2286, 8240), (2472, 7620), (2540, 7416), (3048, 6180), (3090, 6096), (3296, 5715), (3708, 5080), (3810, 4944), (4064, 4635), (4120, 4572)]