18878580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{14983}}^1$

素因数の和:15005

約数の個数: 72

約数和(自身を含む): 65450112

約数和(自身を除く): 46571532

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 14983, 29966, 44949, 59932, 74915, 89898, 104881, 134847, 149830, 179796, 209762, 224745, 269694, 299660, 314643, 419524, 449490, 524405, 539388, 629286, 674235, 898980, 943929, 1048810, 1258572, 1348470, 1573215, 1887858, 2097620, 2696940, 3146430, 3775716, 4719645, 6292860, 9439290, 18878580]

約数ペア:

[(1, 18878580), (2, 9439290), (3, 6292860), (4, 4719645), (5, 3775716), (6, 3146430), (7, 2696940), (9, 2097620), (10, 1887858), (12, 1573215), (14, 1348470), (15, 1258572), (18, 1048810), (20, 943929), (21, 898980), (28, 674235), (30, 629286), (35, 539388), (36, 524405), (42, 449490), (45, 419524), (60, 314643), (63, 299660), (70, 269694), (84, 224745), (90, 209762), (105, 179796), (126, 149830), (140, 134847), (180, 104881), (210, 89898), (252, 74915), (315, 59932), (420, 44949), (630, 29966), (1260, 14983)]