28254870

素因数分解:

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

素因数の和:219

約数の個数: 144

約数和(自身を含む): 88030800

約数和(自身を除く): 59775930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 43, 45, 49, 63, 70, 86, 90, 98, 105, 126, 129, 147, 149, 210, 215, 245, 258, 294, 298, 301, 315, 387, 430, 441, 447, 490, 602, 630, 645, 735, 745, 774, 882, 894, 903, 1043, 1290, 1341, 1470, 1490, 1505, 1806, 1935, 2086, 2107, 2205, 2235, 2682, 2709, 3010, 3129, 3870, 4214, 4410, 4470, 4515, 5215, 5418, 6258, 6321, 6407, 6705, 7301, 9030, 9387, 10430, 10535, 12642, 12814, 13410, 13545, 14602, 15645, 18774, 18963, 19221, 21070, 21903, 27090, 31290, 31605, 32035, 36505, 37926, 38442, 43806, 44849, 46935, 57663, 63210, 64070, 65709, 73010, 89698, 93870, 94815, 96105, 109515, 115326, 131418, 134547, 189630, 192210, 219030, 224245, 269094, 288315, 313943, 328545, 403641, 448490, 576630, 627886, 657090, 672735, 807282, 941829, 1345470, 1569715, 1883658, 2018205, 2825487, 3139430, 4036410, 4709145, 5650974, 9418290, 14127435, 28254870]

約数ペア:

[(1, 28254870), (2, 14127435), (3, 9418290), (5, 5650974), (6, 4709145), (7, 4036410), (9, 3139430), (10, 2825487), (14, 2018205), (15, 1883658), (18, 1569715), (21, 1345470), (30, 941829), (35, 807282), (42, 672735), (43, 657090), (45, 627886), (49, 576630), (63, 448490), (70, 403641), (86, 328545), (90, 313943), (98, 288315), (105, 269094), (126, 224245), (129, 219030), (147, 192210), (149, 189630), (210, 134547), (215, 131418), (245, 115326), (258, 109515), (294, 96105), (298, 94815), (301, 93870), (315, 89698), (387, 73010), (430, 65709), (441, 64070), (447, 63210), (490, 57663), (602, 46935), (630, 44849), (645, 43806), (735, 38442), (745, 37926), (774, 36505), (882, 32035), (894, 31605), (903, 31290), (1043, 27090), (1290, 21903), (1341, 21070), (1470, 19221), (1490, 18963), (1505, 18774), (1806, 15645), (1935, 14602), (2086, 13545), (2107, 13410), (2205, 12814), (2235, 12642), (2682, 10535), (2709, 10430), (3010, 9387), (3129, 9030), (3870, 7301), (4214, 6705), (4410, 6407), (4470, 6321), (4515, 6258), (5215, 5418)]