18836580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 63201600

約数和(自身を除く): 44365020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 105, 129, 140, 147, 149, 172, 196, 210, 215, 245, 258, 294, 298, 301, 420, 430, 447, 490, 516, 588, 596, 602, 645, 735, 745, 860, 894, 903, 980, 1043, 1204, 1290, 1470, 1490, 1505, 1788, 1806, 2086, 2107, 2235, 2580, 2940, 2980, 3010, 3129, 3612, 4172, 4214, 4470, 4515, 5215, 6020, 6258, 6321, 6407, 7301, 8428, 8940, 9030, 10430, 10535, 12516, 12642, 12814, 14602, 15645, 18060, 19221, 20860, 21070, 21903, 25284, 25628, 29204, 31290, 31605, 32035, 36505, 38442, 42140, 43806, 44849, 62580, 63210, 64070, 73010, 76884, 87612, 89698, 96105, 109515, 126420, 128140, 134547, 146020, 179396, 192210, 219030, 224245, 269094, 313943, 384420, 438060, 448490, 538188, 627886, 672735, 896980, 941829, 1255772, 1345470, 1569715, 1883658, 2690940, 3139430, 3767316, 4709145, 6278860, 9418290, 18836580]

約数ペア:

[(1, 18836580), (2, 9418290), (3, 6278860), (4, 4709145), (5, 3767316), (6, 3139430), (7, 2690940), (10, 1883658), (12, 1569715), (14, 1345470), (15, 1255772), (20, 941829), (21, 896980), (28, 672735), (30, 627886), (35, 538188), (42, 448490), (43, 438060), (49, 384420), (60, 313943), (70, 269094), (84, 224245), (86, 219030), (98, 192210), (105, 179396), (129, 146020), (140, 134547), (147, 128140), (149, 126420), (172, 109515), (196, 96105), (210, 89698), (215, 87612), (245, 76884), (258, 73010), (294, 64070), (298, 63210), (301, 62580), (420, 44849), (430, 43806), (447, 42140), (490, 38442), (516, 36505), (588, 32035), (596, 31605), (602, 31290), (645, 29204), (735, 25628), (745, 25284), (860, 21903), (894, 21070), (903, 20860), (980, 19221), (1043, 18060), (1204, 15645), (1290, 14602), (1470, 12814), (1490, 12642), (1505, 12516), (1788, 10535), (1806, 10430), (2086, 9030), (2107, 8940), (2235, 8428), (2580, 7301), (2940, 6407), (2980, 6321), (3010, 6258), (3129, 6020), (3612, 5215), (4172, 4515), (4214, 4470)]