18510240

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{787}}^1$

素因数の和:819

約数の個数: 144

約数和(自身を含む): 67912992

約数和(自身を除く): 49402752

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 787, 840, 980, 1120, 1176, 1470, 1568, 1574, 1680, 1960, 2352, 2361, 2940, 3148, 3360, 3920, 3935, 4704, 4722, 5509, 5880, 6296, 7840, 7870, 9444, 11018, 11760, 11805, 12592, 15740, 16527, 18888, 22036, 23520, 23610, 25184, 27545, 31480, 33054, 37776, 38563, 44072, 47220, 55090, 62960, 66108, 75552, 77126, 82635, 88144, 94440, 110180, 115689, 125920, 132216, 154252, 165270, 176288, 188880, 192815, 220360, 231378, 264432, 308504, 330540, 377760, 385630, 440720, 462756, 528864, 578445, 617008, 661080, 771260, 881440, 925512, 1156890, 1234016, 1322160, 1542520, 1851024, 2313780, 2644320, 3085040, 3702048, 4627560, 6170080, 9255120, 18510240]

約数ペア:

[(1, 18510240), (2, 9255120), (3, 6170080), (4, 4627560), (5, 3702048), (6, 3085040), (7, 2644320), (8, 2313780), (10, 1851024), (12, 1542520), (14, 1322160), (15, 1234016), (16, 1156890), (20, 925512), (21, 881440), (24, 771260), (28, 661080), (30, 617008), (32, 578445), (35, 528864), (40, 462756), (42, 440720), (48, 385630), (49, 377760), (56, 330540), (60, 308504), (70, 264432), (80, 231378), (84, 220360), (96, 192815), (98, 188880), (105, 176288), (112, 165270), (120, 154252), (140, 132216), (147, 125920), (160, 115689), (168, 110180), (196, 94440), (210, 88144), (224, 82635), (240, 77126), (245, 75552), (280, 66108), (294, 62960), (336, 55090), (392, 47220), (420, 44072), (480, 38563), (490, 37776), (560, 33054), (588, 31480), (672, 27545), (735, 25184), (784, 23610), (787, 23520), (840, 22036), (980, 18888), (1120, 16527), (1176, 15740), (1470, 12592), (1568, 11805), (1574, 11760), (1680, 11018), (1960, 9444), (2352, 7870), (2361, 7840), (2940, 6296), (3148, 5880), (3360, 5509), (3920, 4722), (3935, 4704)]