18544860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{383}}^1$

素因数の和:667

約数の個数: 72

約数和(自身を含む): 56609280

約数和(自身を除く): 38064420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 269, 383, 538, 766, 807, 1076, 1149, 1345, 1532, 1614, 1915, 2298, 2421, 2690, 3228, 3447, 3830, 4035, 4596, 4842, 5380, 5745, 6894, 7660, 8070, 9684, 11490, 12105, 13788, 16140, 17235, 22980, 24210, 34470, 48420, 68940, 103027, 206054, 309081, 412108, 515135, 618162, 927243, 1030270, 1236324, 1545405, 1854486, 2060540, 3090810, 3708972, 4636215, 6181620, 9272430, 18544860]

約数ペア:

[(1, 18544860), (2, 9272430), (3, 6181620), (4, 4636215), (5, 3708972), (6, 3090810), (9, 2060540), (10, 1854486), (12, 1545405), (15, 1236324), (18, 1030270), (20, 927243), (30, 618162), (36, 515135), (45, 412108), (60, 309081), (90, 206054), (180, 103027), (269, 68940), (383, 48420), (538, 34470), (766, 24210), (807, 22980), (1076, 17235), (1149, 16140), (1345, 13788), (1532, 12105), (1614, 11490), (1915, 9684), (2298, 8070), (2421, 7660), (2690, 6894), (3228, 5745), (3447, 5380), (3830, 4842), (4035, 4596)]