18981360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1$

素因数の和:703

約数の個数: 120

約数和(自身を含む): 65402064

約数和(自身を除く): 46420704

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 120, 123, 144, 164, 180, 205, 240, 246, 328, 360, 369, 410, 492, 615, 643, 656, 720, 738, 820, 984, 1230, 1286, 1476, 1640, 1845, 1929, 1968, 2460, 2572, 2952, 3215, 3280, 3690, 3858, 4920, 5144, 5787, 5904, 6430, 7380, 7716, 9645, 9840, 10288, 11574, 12860, 14760, 15432, 19290, 23148, 25720, 26363, 28935, 29520, 30864, 38580, 46296, 51440, 52726, 57870, 77160, 79089, 92592, 105452, 115740, 131815, 154320, 158178, 210904, 231480, 237267, 263630, 316356, 395445, 421808, 462960, 474534, 527260, 632712, 790890, 949068, 1054520, 1186335, 1265424, 1581780, 1898136, 2109040, 2372670, 3163560, 3796272, 4745340, 6327120, 9490680, 18981360]

約数ペア:

[(1, 18981360), (2, 9490680), (3, 6327120), (4, 4745340), (5, 3796272), (6, 3163560), (8, 2372670), (9, 2109040), (10, 1898136), (12, 1581780), (15, 1265424), (16, 1186335), (18, 1054520), (20, 949068), (24, 790890), (30, 632712), (36, 527260), (40, 474534), (41, 462960), (45, 421808), (48, 395445), (60, 316356), (72, 263630), (80, 237267), (82, 231480), (90, 210904), (120, 158178), (123, 154320), (144, 131815), (164, 115740), (180, 105452), (205, 92592), (240, 79089), (246, 77160), (328, 57870), (360, 52726), (369, 51440), (410, 46296), (492, 38580), (615, 30864), (643, 29520), (656, 28935), (720, 26363), (738, 25720), (820, 23148), (984, 19290), (1230, 15432), (1286, 14760), (1476, 12860), (1640, 11574), (1845, 10288), (1929, 9840), (1968, 9645), (2460, 7716), (2572, 7380), (2952, 6430), (3215, 5904), (3280, 5787), (3690, 5144), (3858, 4920)]