657090

素因数分解:

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

素因数の和:176

約数の個数: 72

約数和(自身を含む): 2000700

約数和(自身を除く): 1343610

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 149, 210, 245, 294, 298, 315, 441, 447, 490, 630, 735, 745, 882, 894, 1043, 1341, 1470, 1490, 2086, 2205, 2235, 2682, 3129, 4410, 4470, 5215, 6258, 6705, 7301, 9387, 10430, 13410, 14602, 15645, 18774, 21903, 31290, 36505, 43806, 46935, 65709, 73010, 93870, 109515, 131418, 219030, 328545, 657090]

約数ペア:

[(1, 657090), (2, 328545), (3, 219030), (5, 131418), (6, 109515), (7, 93870), (9, 73010), (10, 65709), (14, 46935), (15, 43806), (18, 36505), (21, 31290), (30, 21903), (35, 18774), (42, 15645), (45, 14602), (49, 13410), (63, 10430), (70, 9387), (90, 7301), (98, 6705), (105, 6258), (126, 5215), (147, 4470), (149, 4410), (210, 3129), (245, 2682), (294, 2235), (298, 2205), (315, 2086), (441, 1490), (447, 1470), (490, 1341), (630, 1043), (735, 894), (745, 882)]