1781186260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{38671}}^1$

素因数の和:38741

約数の個数: 72

約数和(自身を含む): 4443876864

約数和(自身を除く): 2662690604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1645, 2303, 3290, 4606, 6580, 9212, 11515, 23030, 38671, 46060, 77342, 154684, 193355, 270697, 386710, 541394, 773420, 1082788, 1353485, 1817537, 1894879, 2706970, 3635074, 3789758, 5413940, 7270148, 7579516, 9087685, 9474395, 12722759, 18175370, 18948790, 25445518, 36350740, 37897580, 50891036, 63613795, 89059313, 127227590, 178118626, 254455180, 356237252, 445296565, 890593130, 1781186260]

約数ペア:

[(1, 1781186260), (2, 890593130), (4, 445296565), (5, 356237252), (7, 254455180), (10, 178118626), (14, 127227590), (20, 89059313), (28, 63613795), (35, 50891036), (47, 37897580), (49, 36350740), (70, 25445518), (94, 18948790), (98, 18175370), (140, 12722759), (188, 9474395), (196, 9087685), (235, 7579516), (245, 7270148), (329, 5413940), (470, 3789758), (490, 3635074), (658, 2706970), (940, 1894879), (980, 1817537), (1316, 1353485), (1645, 1082788), (2303, 773420), (3290, 541394), (4606, 386710), (6580, 270697), (9212, 193355), (11515, 154684), (23030, 77342), (38671, 46060)]