18813390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{997}}^1$

素因数の和:1061

約数の個数: 64

約数和(自身を含む): 49149504

約数和(自身を除く): 30336114

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 37, 51, 74, 85, 102, 111, 170, 185, 222, 255, 370, 510, 555, 629, 997, 1110, 1258, 1887, 1994, 2991, 3145, 3774, 4985, 5982, 6290, 9435, 9970, 14955, 16949, 18870, 29910, 33898, 36889, 50847, 73778, 84745, 101694, 110667, 169490, 184445, 221334, 254235, 368890, 508470, 553335, 627113, 1106670, 1254226, 1881339, 3135565, 3762678, 6271130, 9406695, 18813390]

約数ペア:

[(1, 18813390), (2, 9406695), (3, 6271130), (5, 3762678), (6, 3135565), (10, 1881339), (15, 1254226), (17, 1106670), (30, 627113), (34, 553335), (37, 508470), (51, 368890), (74, 254235), (85, 221334), (102, 184445), (111, 169490), (170, 110667), (185, 101694), (222, 84745), (255, 73778), (370, 50847), (510, 36889), (555, 33898), (629, 29910), (997, 18870), (1110, 16949), (1258, 14955), (1887, 9970), (1994, 9435), (2991, 6290), (3145, 5982), (3774, 4985)]