18939480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3221}}^1$

素因数の和:3249

約数の個数: 96

約数和(自身を含む): 66115440

約数和(自身を除く): 47175960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3221, 5880, 6442, 9663, 12884, 16105, 19326, 22547, 25768, 32210, 38652, 45094, 48315, 64420, 67641, 77304, 90188, 96630, 112735, 128840, 135282, 157829, 180376, 193260, 225470, 270564, 315658, 338205, 386520, 450940, 473487, 541128, 631316, 676410, 789145, 901880, 946974, 1262632, 1352820, 1578290, 1893948, 2367435, 2705640, 3156580, 3787896, 4734870, 6313160, 9469740, 18939480]

約数ペア:

[(1, 18939480), (2, 9469740), (3, 6313160), (4, 4734870), (5, 3787896), (6, 3156580), (7, 2705640), (8, 2367435), (10, 1893948), (12, 1578290), (14, 1352820), (15, 1262632), (20, 946974), (21, 901880), (24, 789145), (28, 676410), (30, 631316), (35, 541128), (40, 473487), (42, 450940), (49, 386520), (56, 338205), (60, 315658), (70, 270564), (84, 225470), (98, 193260), (105, 180376), (120, 157829), (140, 135282), (147, 128840), (168, 112735), (196, 96630), (210, 90188), (245, 77304), (280, 67641), (294, 64420), (392, 48315), (420, 45094), (490, 38652), (588, 32210), (735, 25768), (840, 22547), (980, 19326), (1176, 16105), (1470, 12884), (1960, 9663), (2940, 6442), (3221, 5880)]