647496680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{16139}}^1$

素因数の和:16226

約数の個数: 64

約数和(自身を含む): 1568808000

約数和(自身を除く): 921311320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 59, 68, 85, 118, 136, 170, 236, 295, 340, 472, 590, 680, 1003, 1180, 2006, 2360, 4012, 5015, 8024, 10030, 16139, 20060, 32278, 40120, 64556, 80695, 129112, 161390, 274363, 322780, 548726, 645560, 952201, 1097452, 1371815, 1904402, 2194904, 2743630, 3808804, 4761005, 5487260, 7617608, 9522010, 10974520, 16187417, 19044020, 32374834, 38088040, 64749668, 80937085, 129499336, 161874170, 323748340, 647496680]

約数ペア:

[(1, 647496680), (2, 323748340), (4, 161874170), (5, 129499336), (8, 80937085), (10, 64749668), (17, 38088040), (20, 32374834), (34, 19044020), (40, 16187417), (59, 10974520), (68, 9522010), (85, 7617608), (118, 5487260), (136, 4761005), (170, 3808804), (236, 2743630), (295, 2194904), (340, 1904402), (472, 1371815), (590, 1097452), (680, 952201), (1003, 645560), (1180, 548726), (2006, 322780), (2360, 274363), (4012, 161390), (5015, 129112), (8024, 80695), (10030, 64556), (16139, 40120), (20060, 32278)]