211580240

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:564

約数の個数: 80

約数和(自身を含む): 506217600

約数和(自身を除く): 294637360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 139, 212, 265, 278, 359, 424, 530, 556, 695, 718, 848, 1060, 1112, 1390, 1436, 1795, 2120, 2224, 2780, 2872, 3590, 4240, 5560, 5744, 7180, 7367, 11120, 14360, 14734, 19027, 28720, 29468, 36835, 38054, 49901, 58936, 73670, 76108, 95135, 99802, 117872, 147340, 152216, 190270, 199604, 249505, 294680, 304432, 380540, 399208, 499010, 589360, 761080, 798416, 998020, 1522160, 1996040, 2644753, 3992080, 5289506, 10579012, 13223765, 21158024, 26447530, 42316048, 52895060, 105790120, 211580240]

約数ペア:

[(1, 211580240), (2, 105790120), (4, 52895060), (5, 42316048), (8, 26447530), (10, 21158024), (16, 13223765), (20, 10579012), (40, 5289506), (53, 3992080), (80, 2644753), (106, 1996040), (139, 1522160), (212, 998020), (265, 798416), (278, 761080), (359, 589360), (424, 499010), (530, 399208), (556, 380540), (695, 304432), (718, 294680), (848, 249505), (1060, 199604), (1112, 190270), (1390, 152216), (1436, 147340), (1795, 117872), (2120, 99802), (2224, 95135), (2780, 76108), (2872, 73670), (3590, 58936), (4240, 49901), (5560, 38054), (5744, 36835), (7180, 29468), (7367, 28720), (11120, 19027), (14360, 14734)]